[MihaZupan] JIT: Optimize const ShiftRightLogical for byte values on XArch

[MihuBot]

Build completed in 17 minutes.
dotnet/runtime#86841

CoreLib diffs

Error: Could not find a part of the path '/home/runtime-utils/Runner/jit-diffs/corelib/dasmset_1/base'.

Frameworks diffs

Diffs

Error: Could not find a part of the path '/home/runtime-utils/Runner/jit-diffs/frameworks/dasmset_1/base'.

Artifacts:

• build-artifacts-main.zip (180 B)
• build-clr-checked-main.zip (184 B)
• build-artifacts-pr.zip (176 B)
• build-clr-checked-pr.zip (180 B)
• jit-diffs-corelib.zip (186 B)
• diff-corelib.txt (103 B)
• jit-diffs-frameworks.zip (192 B)
• diff-frameworks.txt (106 B)
• build-logs.txt (1 MB)