src: use namespace prefix osmo_* for misc utils

Summary of changes:

s/bcd2char/osmo_bcd2char/g
s/char2bcd/osmo_char2bcd/g
s/hexparse/osmo_hexparse/g
s/hexdump/osmo_hexdump/g
s/hexdump_nospc/osmo_hexdump_nospc/g
s/ubit_dump/osmo_ubit_dump/g
s/static_assert/osmo_static_assert/g
diff --git a/openbsc/src/ipaccess/ipaccess-config.c b/openbsc/src/ipaccess/ipaccess-config.c
index e84892c..af0ea00 100644
--- a/openbsc/src/ipaccess/ipaccess-config.c
+++ b/openbsc/src/ipaccess/ipaccess-config.c
@@ -129,7 +129,7 @@
 	num_arfcn = ipac_rxlevstat2whitelist(whitelist, st, 0, 100);
 	arfcnlist_size = num_arfcn * 2;
 	*((uint16_t *) (physconf_buf+2)) = htons(arfcnlist_size);
-	DEBUGP(DNM, "physconf_buf (%s)\n", hexdump(physconf_buf, arfcnlist_size+4));
+	DEBUGP(DNM, "physconf_buf (%s)\n", osmo_hexdump(physconf_buf, arfcnlist_size+4));
 	return arfcnlist_size+4;
 }
 
diff --git a/openbsc/src/ipaccess/ipaccess-firmware.c b/openbsc/src/ipaccess/ipaccess-firmware.c
index a01e61b..6d39107 100644
--- a/openbsc/src/ipaccess/ipaccess-firmware.c
+++ b/openbsc/src/ipaccess/ipaccess-firmware.c
@@ -29,8 +29,8 @@
 
 #define PART_LENGTH 138
 
-static_assert(sizeof(struct sdp_header_entry) == 138, right_entry);
-static_assert(sizeof(struct sdp_firmware) == 158, _right_header_length);
+osmo_static_assert(sizeof(struct sdp_header_entry) == 138, right_entry);
+osmo_static_assert(sizeof(struct sdp_firmware) == 158, _right_header_length);
 
 /* more magic, the second "int" in the header */
 static char more_magic[] = { 0x10, 0x02 };
diff --git a/openbsc/src/ipaccess/ipaccess-proxy.c b/openbsc/src/ipaccess/ipaccess-proxy.c
index 2717ba1..bbd5e32 100644
--- a/openbsc/src/ipaccess/ipaccess-proxy.c
+++ b/openbsc/src/ipaccess/ipaccess-proxy.c
@@ -230,7 +230,7 @@
 	}
 	msgb_put(msg, ret);
 	msg->l2h = msg->data + sizeof(*hh);
-	DEBUGP(DMI, "UDP RX: %s\n", hexdump(msg->data, msg->len));
+	DEBUGP(DMI, "UDP RX: %s\n", osmo_hexdump(msg->data, msg->len));
 
 	if (hh->len != msg->len - sizeof(*hh)) {
 		DEBUGP(DINP, "length (%u/%u) disagrees with header(%u)\n",
@@ -789,7 +789,7 @@
 
 	msgb_put(msg, ret);
 	logp_ipbc_uid(DMI, LOGL_DEBUG, ipbc, bfd->priv_nr >> 8);
-	DEBUGPC(DMI, "RX<-%s: %s\n", btsbsc, hexdump(msg->data, msg->len));
+	DEBUGPC(DMI, "RX<-%s: %s\n", btsbsc, osmo_hexdump(msg->data, msg->len));
 
 	hh = (struct ipaccess_head *) msg->data;
 	if (hh->proto == IPAC_PROTO_IPACCESS) {
@@ -861,7 +861,7 @@
 
 	logp_ipbc_uid(DMI, LOGL_DEBUG, ipbc, bfd->priv_nr >> 8);
 	DEBUGPC(DMI, "TX %04x: %s\n", bfd->priv_nr,
-		hexdump(msg->data, msg->len));
+		osmo_hexdump(msg->data, msg->len));
 
 	ret = send(bfd->fd, msg->data, msg->len, 0);
 	msgb_free(msg);
diff --git a/openbsc/src/ipaccess/network_listen.c b/openbsc/src/ipaccess/network_listen.c
index 27d8a1d..a719903 100644
--- a/openbsc/src/ipaccess/network_listen.c
+++ b/openbsc/src/ipaccess/network_listen.c
@@ -191,17 +191,17 @@
 			last_arfcn = binfo.arfcn;
 		}
 		if (binfo.info_type & IPAC_BINF_NEIGH_BA_SI2) {
-			DEBUGP(DNM, "BA SI2: %s\n", hexdump(binfo.ba_list_si2, sizeof(binfo.ba_list_si2)));
+			DEBUGP(DNM, "BA SI2: %s\n", osmo_hexdump(binfo.ba_list_si2, sizeof(binfo.ba_list_si2)));
 			gsm48_decode_freq_list(nwl_si_freq, binfo.ba_list_si2, sizeof(binfo.ba_list_si2),
 						0x8c, FREQ_TYPE_NCELL_2);
 		}
 		if (binfo.info_type & IPAC_BINF_NEIGH_BA_SI2bis) {
-			DEBUGP(DNM, "BA SI2bis: %s\n", hexdump(binfo.ba_list_si2bis, sizeof(binfo.ba_list_si2bis)));
+			DEBUGP(DNM, "BA SI2bis: %s\n", osmo_hexdump(binfo.ba_list_si2bis, sizeof(binfo.ba_list_si2bis)));
 			gsm48_decode_freq_list(nwl_si_freq, binfo.ba_list_si2bis, sizeof(binfo.ba_list_si2bis),
 						0x8e, FREQ_TYPE_NCELL_2bis);
 		}
 		if (binfo.info_type & IPAC_BINF_NEIGH_BA_SI2ter) {
-			DEBUGP(DNM, "BA SI2ter: %s\n", hexdump(binfo.ba_list_si2ter, sizeof(binfo.ba_list_si2ter)));
+			DEBUGP(DNM, "BA SI2ter: %s\n", osmo_hexdump(binfo.ba_list_si2ter, sizeof(binfo.ba_list_si2ter)));
 			gsm48_decode_freq_list(nwl_si_freq, binfo.ba_list_si2ter, sizeof(binfo.ba_list_si2ter),
 						0x8e, FREQ_TYPE_NCELL_2ter);
 		}