PPC [liftoff]: skip liftoff related tests

Change-Id: Id4336aae4e8ef8974657a28cb5e8ea66a968c60c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3202474Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77233}

test/cctest/cctest.status

@@ -529,6 +529,11 @@
 ['arch == ppc64', {
   # https://crbug.com/v8/8766
   'test-bytecode-generator/WideRegisters': [SKIP],
+  # Liftoff is not currently supported on ppc
+  'test-liftoff-*': [SKIP],
+  'test-gc/RunWasmLiftoff*': [SKIP],
+  'test-run-wasm-module/Run_WasmModule_CompilationHintsNoTiering': [SKIP],
+  'test-wasm-serialization/TierDownAfterDeserialization': [SKIP],
 }],
 
 ##############################################################################

test/mjsunit/mjsunit.status

@@ -1276,7 +1276,7 @@
 
 ##############################################################################
 # Skip Liftoff tests on platforms that do not fully implement Liftoff.
-['arch not in (x64, ia32, arm64, arm, ppc64, s390x)', {
+['arch not in (x64, ia32, arm64, arm, s390x)', {
   'wasm/liftoff': [SKIP],
   'wasm/liftoff-debug': [SKIP],
   'wasm/tier-up-testing-flag': [SKIP],
@@ -1284,7 +1284,8 @@
   'wasm/wasm-dynamic-tiering': [SKIP],
   'wasm/test-partial-serialization': [SKIP],
   'regress/wasm/regress-1248024': [SKIP],
-}], # arch not in (x64, ia32, arm64, arm, ppc64, s390x)
+  'regress/wasm/regress-1251465': [SKIP],
+}], # arch not in (x64, ia32, arm64, arm, s390x)
 
 ##############################################################################
 ['system != linux or virtual_memory_cage == True', {