build: recovery: Support adding device-specific items

Change-Id: I25205e68282680932917016646dabd1abadbfce6
Revert "Do not copy bootanimayion, increase boot speed"

This reverts commit a83b52fa293880162939d92d38e19232a273407a.
Merge remote-tracking branch 'cyanogen/cm-11.0' into cm-11.0
product_config: Set CM_BUILD priority above TARGET_BUILD_APPS

Even if we are doing TARGET_BUILD_APPS, we may want to use a cm
target for building.

Change-Id: Ic8053bc679fa8b726be90e611aeaacdf1850cabc
Merge remote-tracking branch 'cyanogen/cm-11.0' into cm-11.0
Merge remote-tracking branch 'cm/cm-11.0' into cm-11.0_rep