Avoid truncating "LOG_LTE_RRC_OTA_MSG_LOG_C" LTE RRC OTA packets as t…

…heir displayed length, as the displayed length is not always present at the end of the log packet inner header, as we can see in the "LteRrcOtaPacketFmt_v7" structure from MobileInsight's source

modules/pcap_dump.py

@@ -210,9 +210,7 @@ def on_log(self, log_type, log_payload, log_header, timestamp = 0):
 
                 header_spec = '<' + freq_type + 'HB4xH'
 
-            (freq, sfn, channel_type, length), signalling_message = unpack_from(header_spec, ext_header), ext_header[calcsize(header_spec):]
-
-            packet = signalling_message[:length]
+            (freq, sfn, channel_type, length), packet = unpack_from(header_spec, ext_header), ext_header[calcsize(header_spec):]
 
             # GSMTAP definition:
             # - https://github.com/wireshark/wireshark/blob/wireshark-2.5.0/epan/dissectors/packet-gsmtap.h