Add -flto to CXXFLAGS

Per openbmc/openbmc#3364, adding -flto to CXX flags
in order to reduce overall library and binary sizes.

Ref: https://gcc.gnu.org/wiki/LinkTimeOptimization

Tested: Verified compiled and boots to Ready in QEMU.

Change-Id: Id68f3253bcf33661d17a62376249a3b2637cfc10
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
1 file changed