gcc: add patch to fix PR37436

When compiling some C++ code, GCC 4.3.x fails with an internal
compiler error. The bug report is available at
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436. The included patch
is the one that has been merged in the trunk of gcc.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

 COPYING