ARM: VIXL32: Fix PackedSwitch.

Fix the case when the jumptable is very far and offset doesn't
fit ADR offset field.

Test: export ART_USE_VIXL_ARM_BACKEND=true && \
      mma test-art-host dist && mma test-art-target dist

Change-Id: I2b8ac04eb343947f9a9301f3ce6285794ddad4b8
3 files changed