serrano: Remove dual-sim stuff

* Let the dual-sim guys deal with this in their device repo

Change-Id: I7b48cf4fe72a061bd119459100e56b4efaf838ef
serrano: Remove zcache from command line

* We're not building support for it in the new kernel

Change-Id: Iaeb204bd6d8e0068e88e71ec1c4d5a8097e63780
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_device_samsung_serrano-common into kk_mkt