build: enable maglev by default on Linux ppc64le

Signed-off-by: Richard Lau <richard.lau@ibm.com>
PR-URL: https://github.com/nodejs/node/pull/63474
Reviewed-By: Stewart X Addison <sxa@redhat.com>

configure.py

@@ -55,7 +55,7 @@ valid_mips_fpu = ('fp32', 'fp64', 'fpxx')
 valid_mips_float_abi = ('soft', 'hard')
 valid_intl_modes = ('none', 'small-icu', 'full-icu', 'system-icu')
 icu_versions = json.loads((tools_path / 'icu' / 'icu_versions.json').read_text(encoding='utf-8'))
-maglev_enabled_architectures = ('x64', 'arm', 'arm64', 's390x')
+maglev_enabled_architectures = ('x64', 'arm', 'arm64', 'ppc64', 's390x')
 
 # builtins may be removed later if they have been disabled by options
 shareable_builtins = {'undici/undici': 'deps/undici/undici.js',
@@ -2175,7 +2175,7 @@ def configure_v8(o, configs):
   o['variables']['v8_promise_internal_field_count'] = 1 # Add internal field to promises for async hooks.
   o['variables']['v8_use_siphash'] = 0 if options.without_siphash else 1
   o['variables']['v8_enable_maglev'] = B(not options.v8_disable_maglev and
-                                         flavor != 'zos' and
+                                         flavor not in ('aix', 'os400', 'zos') and
                                          o['variables']['target_arch'] in maglev_enabled_architectures)
   o['variables']['v8_enable_pointer_compression'] = 1 if options.enable_pointer_compression else 0
   # Using the sandbox requires always allocating array buffer backing stores in the sandbox.