The da850_mmcsd0_pins pinmux array contains pins that are specific to the
da850 evm board (the write protect and card detect GPIO pins).  Move
the array to the board file.
Signed-off-by: NMichael Williamson <michael.williamson@criticallink.com>
Tested-by: NSudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>