mmc: update header file paths

Make sure all headers in the files reflect their true position
in the tree.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

drivers/mmc/host/omap.c

@@ -1,5 +1,5 @@
 /*
- *  linux/drivers/media/mmc/omap.c
+ *  linux/drivers/mmc/host/omap.c
  *
  *  Copyright (C) 2004 Nokia Corporation
  *  Written by Tuukka Tikkanen and Juha Yrj<72>l<EFBFBD><juha.yrjola@nokia.com>