Reland "Enable cfi-icall on the v8 CFI bots"

This is a reland of 9a7e9cf2

Original change's description:
> Enable cfi-icall on the v8 CFI bots
>
> BUG=v8:7164
>
> Change-Id: I7522ba6ac2bde89c84bcd49bc116a432091a2938
> Reviewed-on: https://chromium-review.googlesource.com/990802
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52343}

CQ_INCLUDE_TRYBOTS=luci.v8.try:v8_linux64_cfi_rel_ng

Bug: v8:7164
Change-Id: I683116e86685fb7295bb576e57ce85fed7445b3c
Reviewed-on: https://chromium-review.googlesource.com/1003692Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52562}

infra/mb/mb_config.pyl

@@ -558,14 +558,14 @@
 
     'cfi': {
       'mixins': ['v8_enable_test_features'],
-      'gn_args': ('is_cfi=true use_cfi_cast=true use_cfi_diag=true '
-                  'use_cfi_recover=false'),
+      'gn_args': ('is_cfi=true use_cfi_cast=true use_cfi_icall=true '
+                  'use_cfi_diag=true use_cfi_recover=false'),
     },
 
     'cfi_clusterfuzz': {
       'mixins': ['v8_enable_test_features'],
-      'gn_args': ('is_cfi=true use_cfi_cast=true use_cfi_diag=true '
-                  'use_cfi_recover=true'),
+      'gn_args': ('is_cfi=true use_cfi_cast=true use_cfi_icall=true '
+                  'use_cfi_diag=true use_cfi_recover=true'),
     },
 
     'clang': {