Updated MipsInstPrinter to print absolute hex offsets for branch instructions.
It is necessary to make the llvm-objdump output close to the gnu objdump output.
This implementation is based on the implementation for RISC-V.
OS Laboratory. Huawei Russian Research Institute. Saint-Petersburg
b {{.*}} <untyped>
Use patterns to make test updating smooth when we need to adjust the layout.
Use this pattern for all lld/test/ELF tests.