deps: exclude tests on ppc for v8 5.0

There were 2 issues which either the v8 team was reluctant to
backport the fix because the fix was for a disabled feature (wasm) or
that we did not have time to investigate before 5.0 was cut
which result in v8 test failures for PPC in 5.0.  These are test
issues and are already resolved in v8 master.  This PR
excludes these tests so that our v8 tests in the CI will
be green so that we can detect any real regressions.

PR-URL: https://github.com/nodejs/node/pull/6267
Fixes: https://github.com/nodejs/node/issues/6236
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

deps/v8/test/cctest/cctest.status

@@ -615,4 +615,11 @@
   'test-api/InitializeDefaultIsolateOnSecondaryThread1': [PASS, ['mode == debug', FAIL]],
 }],
 
+##############################################################################
+# exclude test issues for which fixes for PPC did not make it into 5.0
+# These should be removed when we upgrade Node.js to use v8 5.1
+['arch == ppc64', {
+  'test-heap/ReleaseOverReservedPages' : [SKIP],
+}],  # 'arch == ppc64''
+
 ]

deps/v8/test/mjsunit/mjsunit.status

@@ -923,4 +923,11 @@
   'big-array-literal': [SKIP],
 }],  # 'gcov_coverage'
 
+##############################################################################
+# exclude test issues for which fixes for PPC did not make it into 5.0
+# These should be removed when we upgrade Node.js to use v8 5.1
+['arch == ppc64', {
+  'wasm/asm-wasm' : [SKIP],
+}],  # 'arch == ppc64''
+
 ]