Fix unnecessary read barrier for resolved/initialized allocations

The caller is responsible for the read barrier for these entrypoints.

No measured change in benchmarks, tested MemAllocTest.

Bug: 12687968

Test: test-art-host CC baker, N6P booting with CC
Change-Id: If6b00fa2c31ff51b943dbbe6caea2ef0a3fa1ae0
2 files changed