uboot-imx

dm: mmc: fsl_esdhc: Set up common versions of operations

Driver model wants to use the core functions in this file but accesses the
driver-private data in a different way. Move the code into new 'common'
functions and set up stubs to call these. Also sort the operations into
alphabetical order for consistency.

Signed-off-by: Simon Glass <sjg@chromium.org>