msm8960: Remove redundant Krait optimizations

 * Seems like these are no longer present in MR2.
   Most likely covered by TARGET_CPU_VARIANT now.

Change-Id: I6ce922a43914414e6aa530e514100fcc3535ff54
Add HAVE_SAMSUNG_AUDIO flag to fix USB DOCK AUDIO on D2

Change-Id: Ie475547a390922886016b686b108c87c064531c3
samsung krait: add msm8974 to build barrier

Change-Id: I61adb916c5091f4f9fb30e1078067f27458974b0
Revert "samsung krait: add msm8974 to build barrier"

This reverts commit 0bfe4c57d1b12e14bef31f49b8dc775f2c2c726a.

Change-Id: I08d89dee28ed0bb779dd7519de2b566dfb02158c
Merge branch 'cm-10.2' of github.com:CyanogenMod/android_device_samsung_msm8960-common into cm-10.2