header file restructuring

Move all protocol definitions to protocol/*.h and keep only
definitions related to our implementation as *.h in the top directory.

Also, remove some header files to reduce header file proliferation.
diff --git a/src/protocol/diag_log_wcdma.h b/src/protocol/diag_log_wcdma.h
new file mode 100644
index 0000000..82a631a
--- /dev/null
+++ b/src/protocol/diag_log_wcdma.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <stdint.h>
+
+#define UMTS(x)	(0x4000 + x)
+
+enum diag_log_code_umts {
+	LOG_WCDMA_RRC_STATES_C				= 0x125,
+	LOG_WCDMA_RRC_PROTOCOL_ERRORS_C			= 0x126,
+	LOG_WCDMA_CELL_ID_C				= 0x127,
+	LOG_WCDMA_SIGNALING_MSG_C			= 0x12f,
+};
+
+enum diag_umts_rrc_chtype {
+	DIAG_UMTS_RRC_CHT_UL_CCCH	= 0,
+	DIAG_UMTS_RRC_CHT_DL_DCCH	= 1,
+	DIAG_UMTS_RRC_CHT_DL_CCCH	= 2,
+	DIAG_UMTS_RRC_CHT_DL_BCCH	= 3,
+	DIAG_UMTS_RRC_CHT_DL_BCCH_BCH	= 4,
+	DIAG_UMTS_RRC_CHT_DL_BCCH_FACH	= 5,
+	DIAG_UMTS_RRC_CHT_DL_PCCH	= 6,
+};
+
+/* LOG_WCDMA_SIGNALING_MSG_C */
+struct diag_umts_rrc_msg {
+	uint8_t		chan_type;
+	uint8_t		rb_id;
+	uint16_t	length;
+	uint8_t		msg[0];
+} __attribute__((packed));