build: recovery: Support adding device-specific items

Change-Id: I25205e68282680932917016646dabd1abadbfce6
Merge remote-tracking branch 'upstream/cm-11.0' into cm-11.0
Revert "Enable pthread support for oatdump and dex2oat"

This reverts commit a9f4fa4ae648cf0141bdeba55803fb9a37ba84b4.
Merge remote-tracking branch 'crdroid/cm-11.0' into crdroid