use separated libosmo-mgcp-client, apply rename to mgcp_client_*

After osmo-mgw changes I8e0b2d2a399b77086a36606f5e427271c6242df1 and
I99f7faab637cfcc22ece64a1dbcbe590f2042187, apply linking of new
libosmo-mgcp-client and renames to drop the "gw" from mgcp_client_*.

Also rename the gsm_network.mgcpgw to mgw, to indicate that the MGCP client is
used to contact the MGW (Media Gateway).

Depends: I8e0b2d2a399b77086a36606f5e427271c6242df1 (osmo-mgw)
         I99f7faab637cfcc22ece64a1dbcbe590f2042187 (osmo-mgw)
Change-Id: I093ad02ca0e532f659447c785e09678b3e6f220d
diff --git a/src/osmo-msc/Makefile.am b/src/osmo-msc/Makefile.am
index a26b4bd..85a5a5a 100644
--- a/src/osmo-msc/Makefile.am
+++ b/src/osmo-msc/Makefile.am
@@ -17,7 +17,7 @@
 	$(LIBOSMORANAP_CFLAGS) \
 	$(LIBASN1C_CFLAGS) \
 	$(LIBOSMOSIGTRAN_CFLAGS) \
-	$(LIBOSMOLEGACYMGCP_CFLAGS) \
+	$(LIBOSMOMGCPCLIENT_CFLAGS) \
 	$(NULL)
 
 AM_LDFLAGS = \
@@ -45,8 +45,7 @@
 	$(LIBSMPP34_LIBS) \
 	$(LIBCRYPTO_LIBS) \
 	$(LIBOSMOSIGTRAN_LIBS) \
-	$(LIBOSMOLEGACYMGCP_LIBS) \
-	$(LIBRARY_GSM) \
+	$(LIBOSMOMGCPCLIENT_LIBS) \
 	-ldbi \
 	$(NULL)
 if BUILD_IU