uart: The uart.h header file uses uint32_t without including stdint.h.

Make it include stdint.h instead of relying on that file having already been
included by something else.

BUG=None
TEST=Built for link, lumpy, nyan, pit.
BRANCH=None

Change-Id: Ia09abc890a5f6b12318aa4ae0897aa8a0baf3b13
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/171335
Reviewed-by: Ronald Minnich <rminnich@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
1 file changed