serrano: Remove custom recovery keys

 * Depends on http://review.cyanogenmod.org/#/c/62724/

Change-Id: Ia6a25daed0517afde1e2e28fccc3bbc1d6962852
serrano: Disable low latency recording

Change-Id: I74d4cea1d5d522f5d5c219ef63c484963b7aa2f2
serrano: Update some init scripts

Change-Id: Iaf948e4eb05521db2fec2973ec8ba390622a0d37
serrano: Increase MMC read ahead to 256kb

Change-Id: I18d2f08a61ed09c82abc026dea857a6bebffd4b9
serrano: Add service entry for wcnss-service

Change-Id: Ieca1e0906e3bd3b5838ef6576fb23fad272c7a47
Merge remote-tracking branch 'upstream/cm-11.0' into kitkat