local.conf.sample: use gcc 4.9 only for armv7a
local.conf.sample: use gcc 4.9 only for armv7a

we are running into issues with gcc 5.x on armv7a, revert to 4.9 for now, until
the fix is understood/fixed.

Signed-off-by: Nicolas Dechesne <05fca36dfcf68f7e1c9eaf62b074676ab50a133b@linaro.org>

ndechesne/qcom-oe-setup