updated libril from caf ril-android-4.4_r1.1

tag name	android-4.4_r1.1 (7b93ab1be815be611ff60892c9455306b9d8887f)
tag date	2013-11-13 23:58:20 (GMT)
https://www.codeaurora.org/cgit/external/gigabyte/platform/hardware/ril/tag/?h=caf/kk_2.7_rb1.9&id=android-4.4_r1.1
libril: update unsol htc responses and add support for m7.

Change-Id: Ibc17332b40c465f89a85fa078604a690b588f6f2

Conflicts:
	libril/ril.cpp
	libril/ril_unsol_commands.h
	libril/telephony/ril.h