qcom-common: network scan fix

Change-Id: I2cef873bd51710be66a795906646b4fcefe94f8c
qcom-common: libril: properly ifdef network mode things

Change-Id: Ifd158e3f45aa14bb1e8bdedf6a80f8e2452e21b3
qcom-common: libril: clean up & add support to append RAT to PLMN

Enable showing network mode in network search result.
Removed "removing 5th string" logic.

Change-Id: I24f921506e029a8d0ff6e9613e2c9bab501712a5
qcom-common: enable append RAT to PLMN

Change-Id: Ib4ce5dbbf45636f931bfeb3f27b2c3fb3132934a