[lld] [LLD][ELF][ARM] Fix resolution of R_ARM_THM_JUMP8 and R_ARM_THM_JUMP11 (PR #126933)

[Peter Smith via llvm-commits]

https://github.com/smithp35 approved this pull request.

Pending addition of `REQUIRES: arm` in the test, this looks good to me. Please leave some time before merging to see if MaskRay has any additional comments. 

https://github.com/llvm/llvm-project/pull/126933