msm8960-common: add unsol response 4802 from m7ul

patchset2: rewrite response 4802 to 2
RIL_UNSOL_RESPONSE_PHONE_MODE_CHANGE_M7 =>
UNSOL_RESPONSE_VOICE_NETWORK_STATE_CHANGED

Change-Id: I425a5d577e66b91daead46f3229af1945b354ab2
Revert "power: change sampling_rate_screen_on 80000"

This reverts commit 97f1665d7eb2499974d0879d4c49aa008d87afeb.
Revert "power: simplify PowerHAL operations using sysfs_write instead of posix write()"

This reverts commit 89353746a50604ccf3138350fc901ab238040b3e.
Revert "powerHAL: remove touchboost error log spam :p"

This reverts commit f16b8a873cfcca195465f9b7a2d06c6d4f6f3011.
Revert "initial powerHAL mod for intellidemand on Nexus 4"

This reverts commit 57c504f1268e2996b2d12025419a2e41463ecdca.
Revert "clean up and pass touch boost on interactive-on"

This reverts commit 3d5f1bc4403fe5ba1550a5e33ed352b794c38cae.
Revert "initial msm8960 power HAL implementation"

This reverts commit 3e959e71bab4dd14d51d14de3c8f2d03636c6290.
msm8960-common: build with 4.7