linux-imx

mtd: rawnand: sharpsl: Remove inclusion of mach and asm headers

We don't need mach/hardware.h and sm/mach-types.h, and asm/io.h can be
replaced by linux/io.h.

Now that we removed those inclusions, we're ready to allow selection of
this driver when COMPILE_TEST=y.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>