cmocka users: Include <stdint.h>

cmocka uses types (like uintmax_t) from <stdint.h>, but purposely
doesn't include everything it needs, leaving that to its users. By some
circumstance of toolchain/headers, it's getting implicitly included
today, but that's not true on some (experiments with) other
toolchains/build setups.

Make the right include.

BUG=none
TEST=build

Change-Id: I4408448365cd0b4c2995f9cc78436e03ccca8124
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/mosys/+/4107771
Tested-by: Brian Norris <briannorris@chromium.org>
Auto-Submit: Brian Norris <briannorris@chromium.org>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
3 files changed