systemc: Ignore a gem5 warning about setting the stack size in verify.py.

This warning shouldn't make a test fail, but it's still useful to keep
around.

Change-Id: I9ebdbec804e11445edb82fa824ee0a6bce5943b0
Reviewed-on: https://gem5-review.googlesource.com/c/12812
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/systemc/tests/verify.py

@@ -241,6 +241,7 @@ class LogChecker(Checker):
         r'^Global frequency set at \d* ticks per second\n',
         r'^info: Entering event queue @ \d*\.  Starting simulation\.\.\.\n',
         r'warn: [^(]+\([^)]*\)( \[with [^]]*\])? not implemented\.\n',
+        r'warn: Ignoring request to set stack size\.\n',
         info_filt(804),
         in_file_filt,
     )