riscv64: Implemented StringEquals intrinsic

Bug: 283082089

Test: art/test/testrunner/testrunner.py --target --64 --ndebug --no-image --jit-on-first-use

Change-Id: Ifb4076d7f12cbad174049995980f0f08db41357a
Signed-off-by: denis.tomashev <denis.tomashev@syntacore.com>
2 files changed