[PATCH] ARM: OMAP: Trivial warning fixups

Bogus type for vfree() in __ioremap_pfn() (should probably use
remove_vm_area() anyways), and some type mismatches in the OMAP MMC
driver.

Signed-off-by: Paul Mundt <paul.mundt@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>