"LRX21R"
"LRX21S"
"LRX21T"
Backup tool support

Conflicts:
	tools/releasetools/ota_from_target_files
build: edify: use set_metadata for backuptool

Also use saner permissions on backuptool.sh

Change-Id: I50742b51867aa358f5924b8dc208833092a35bd9
ota: Include copies of the recovery scripts even if shipping in block mode
ota: Fix recovery-script cleanups in block mode

Change-Id: Iadb480f8062cfb7a0e6c9024e32ac0d71a7481d7
Merge remote-tracking branch 'aosp/lollipop-release' into L