assembler: Fix short jumps

Use full 8bit immediate for jump offset.

http://shortn/_R7x0vwq1zr for perf data.

Test: tree-hugger
Bug: 200327919
Bug: 248619205
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:47481fc96f4999b8461c968e00474676e20eb760)
Merged-In: I745b57d54e58b5e7c87ea5f37889a4d0a75aa230
Change-Id: I745b57d54e58b5e7c87ea5f37889a4d0a75aa230
1 file changed