staging: fsl-mc: cleanup: convert uintX_t types to uX

Replace all uses of uintX_t types with uX types in order to comply with
kernel coding style and resolve checkpatch warnings.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>