new kernel

add xpad module
kernel source: https://github.com/cmorlok/android_kernel_samsung_p5/tree/d6f7d30ccdfddab1085bd41628446b2a5ab45981

Change-Id: Ibb815e23af5729e5ae5024f8961f171c5a411ed7
Revert "p4: remove audio_policy.tegra"

This reverts commit 4d37f75b3ac5f9ebbeb40482de0d8d6f8a613927.

Change-Id: Ibd6aca547abbea5a6f891f5d060088309b977f04
overlay: camera: fix discoloration when recording 720p

Change-Id: I339b1f3b37d04ff5963833846c27f479f7067ccb