Allow full Cortex-M4 instruction set for STM32F3xx
Allow full Cortex-M4 instruction set for STM32F3xx

STM32F3xx has a Cortex-M4 core. Allow the full instruction set.

BRANCH=None
BUG=chrome-os-partner:32660
TEST=None

Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/223890
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
(cherry picked from commit eb939f655c4c82097a6731a5b4ebc4c3e8279b37)
Signed-off-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>

Change-Id: Ibb1dc0e36eed6b3042bde60cf2870a108176d919
Reviewed-on: https://chromium-review.googlesource.com/225688
Tested-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Reviewed-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Commit-Queue: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>

thehobn/ec,thehobn/ec,thehobn/ec,thehobn/ec