PPC/s390: [wasm-gc] Liftoff support part 3: arrays

Port 3dffdf03

Original Commit Message:

    This adds support for the following instructions:
    ref.eq, array.new_with_rtt, array.new_default_with_rtt,
    array.get, array.set, array.len.

R=jkummerow@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: I5e517967648251f9babbabe4dc9148a5432aa58e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2595927Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#71807}

src/wasm/baseline/ppc/liftoff-assembler-ppc.h

@@ -114,6 +114,7 @@ void LiftoffAssembler::LoadTaggedPointer(Register dst, Register src_addr,
 }
 
 void LiftoffAssembler::StoreTaggedPointer(Register dst_addr,
+                                          Register offset_reg,
                                           int32_t offset_imm,
                                           LiftoffRegister src,
                                           LiftoffRegList pinned) {

src/wasm/baseline/s390/liftoff-assembler-s390.h

@@ -158,6 +158,7 @@ void LiftoffAssembler::LoadTaggedPointer(Register dst, Register src_addr,
 }
 
 void LiftoffAssembler::StoreTaggedPointer(Register dst_addr,
+                                          Register offset_reg,
                                           int32_t offset_imm,
                                           LiftoffRegister src,
                                           LiftoffRegList pinned) {