Reland of [gn] Switch gcc bots to gn (patchset #1 id:1 of...

Reland of [gn] Switch gcc bots to gn (patchset #1 id:1 of https://codereview.chromium.org/2130303002/ )

Reason for revert:
Relanding as the goma problem is due to an upgrade of the binutils version we use.

Original issue's description:
> Revert of [gn] Switch gcc bots to gn (patchset #3 id:40001 of https://codereview.chromium.org/2124263002/ )
>
> Reason for revert:
> There are a bunch of goma errors on the gcc bot now. Maybe connected to this CL.
>
> https://build.chromium.org/p/tryserver.v8/builders/v8_linux_gcc_compile_rel/builds/19068
>
> Original issue's description:
> > [gn] Switch gcc bots to gn
> >
> > BUG=chromium:474921
> >
> > Committed: https://crrev.com/73f154ba601dc70c4007968fa902d4beacba4393
> > Cr-Commit-Position: refs/heads/master@{#37580}
>
> TBR=vogelheim@chromium.org,jochen@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:474921
>
> Committed: https://crrev.com/980d0d6e227f8de3cc0b71a0d3f492908adcf138
> Cr-Commit-Position: refs/heads/master@{#37603}

TBR=vogelheim@chromium.org,jochen@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=chromium:474921
NOTRY=true

Review-Url: https://codereview.chromium.org/2132333002
Cr-Commit-Position: refs/heads/master@{#37624}

infra/mb/mb_config.pyl

@@ -60,7 +60,7 @@
       'V8 Linux ASAN mipsel - debug builder':
           'gyp_debug_simulate_mipsel_asan_edge',
       # Misc.
-      'V8 Linux gcc 4.8': 'gyp_release_x86_gcc',
+      'V8 Linux gcc 4.8': 'gn_release_x86_gcc',
       # FYI.
       'V8 Linux - swarming staging': 'gn_release_x64',
       # TODO(machenbach): Figure out if symbolized is still needed. The
@@ -138,8 +138,8 @@
       'v8_linux_gc_stress_dbg': 'gyp_debug_x86_trybot',
       'v8_linux_nosnap_rel': 'gn_release_x86_no_snap_trybot',
       'v8_linux_nosnap_dbg': 'gn_debug_x86_no_snap_trybot',
-      'v8_linux_gcc_compile_rel': 'gyp_release_x86_gcc_minimal_symbols',
-      'v8_linux_gcc_rel': 'gyp_release_x86_gcc_minimal_symbols',
+      'v8_linux_gcc_compile_rel': 'gn_release_x86_gcc_minimal_symbols',
+      'v8_linux_gcc_rel': 'gn_release_x86_gcc_minimal_symbols',
       'v8_linux64_rel_ng': 'gn_release_x64_trybot',
       'v8_linux64_gyp_rel_ng': 'gyp_release_x64',
       'v8_linux64_avx2_rel_ng': 'gn_release_x64_trybot',
@@ -210,6 +210,10 @@
     # GN release configs for x86.
     'gn_release_x86': [
       'gn', 'release_bot', 'x86', 'swarming'],
+    'gn_release_x86_gcc': [
+      'gn', 'release_bot', 'x86', 'gcc'],
+    'gn_release_x86_gcc_minimal_symbols': [
+      'gn', 'release_bot', 'x86', 'gcc', 'minimal_symbols'],
     'gn_release_x86_gcmole': [
       'gn', 'release_bot', 'x86', 'gcmole', 'swarming'],
     'gn_release_x86_gcmole_trybot': [
@@ -340,10 +344,6 @@
       'gyp', 'release_bot', 'x86', 'swarming'],
     'gyp_release_x86_disassembler': [
       'gyp', 'release_bot', 'x86', 'v8_enable_disassembler'],
-    'gyp_release_x86_gcc': [
-      'gyp', 'release_bot', 'x86', 'gcc'],
-    'gyp_release_x86_gcc_minimal_symbols': [
-      'gyp', 'release_bot', 'x86', 'gcc', 'minimal_symbols'],
     'gyp_release_x86_interpreted_regexp': [
       'gyp', 'release_bot', 'x86', 'v8_interpreted_regexp'],
     'gyp_release_x86_minimal_symbols': [