gcc: backport patch to fix miscompilation on mips64
Backport a patch to fix miscompilation on mips64.
We've observed strange behaviour of `systemctl status <xxx> on qemumips64.
The output of the command is like `systemctl show <xxx>', which is incorrect.
The problem is due to the miscompilation of gcc for mips64 platform, thus
backporting patch from upstream to fix this problem.
[YOCTO #12266]
Signed-off-by: Chen Qi <Qi.Chen@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>