For OMAP3 add MMC1 MMC2 pin mux MMC3 mux is not added as there are
multiple configurations possible, so the muxing is left to be done
in board file.
Signed-off-by: NVikram Pandita <vikram.pandita@ti.com>
Signed-off-by: NChikkature Rajashekar <madhu.cr@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>