MIPS[64]: Skip regress-779407 test

This test uses 136GB of memory which is too much for our MIPS boards.

NOTRY=true

Bug: v8:7093
Change-Id: I382bf0832da6ae74241e89a2016c3738f03979fd
Reviewed-on: https://chromium-review.googlesource.com/776765Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49443}

test/mjsunit/mjsunit.status

@@ -499,6 +499,7 @@
 
   # Requires too much memory on MIPS.
   'regress/regress-752764': [SKIP],
+  'regress/regress-779407': [SKIP],
 }],  # 'arch == mipsel or arch == mips'
 
 ##############################################################################
@@ -550,6 +551,7 @@
 
   # Requires too much memory on MIPS.
   'regress/regress-752764': [SKIP],
+  'regress/regress-779407': [SKIP],
 }],  # 'arch == mips64el or arch == mips64'
 
 ##############################################################################