Commit b6e0703b (mmc: omap: make it behave well as a module) made some

__devinit changes but missed one function causing a section warning:

WARNING: vmlinux.o(.devinit.text+0x8604): Section mismatch in reference
from the function mmc_omap_probe)
The function __devinit mmc_omap_probe() references a function
__init mmc_omap_new_slot()

Signed-off-by: Tony Lindgren <tony@atomide.com>