Fix build failure in scheduler_arm with ART_USE_OLD_ARM_BACKEND=1

Test: m ART_USE_VIXL_ARM_BACKEND=true test-art-host
Test: m ART_USE_VIXL_ARM_BACKEND=true test-art-target

Change-Id: Id6019ec26a9e9ffe5c0ca7eb2535f094ea009763
1 file changed