[RISCV] Supplement more tests for GREVI aliaes in Zbp extension

Supplement tests for some aliaes of grevi.

RV32:
add rev4.h/rev2.h in rv32zbp.ll
add rev/rev2/rev4/rev8/rev16 in rv32zbp-intrinsic.ll

RV64:
add rev4.h/rev2.h in rv64zbp.ll
add rev.h/rev/rev2/rev4/rev8/rev16/rev32/rev.w/rev2.w/
    rev4.w/rev8.w/rev16.w in rv64zbp-intrinsic.ll

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D120304