rose: add stm32f4 family support

This change applys config-stm32f446.h to stm32f4 family.

BUG=chromium:688979
TEST=boots on stm32f401 and stm32f412 dev boards
BRANCH=none

Change-Id: I939fd17f29f4b431d9c1358c184166c67fef18d3
Signed-off-by: Rong Chang <rongchang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/438908
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
1 file changed