mmc: esdhc-imx: fix card interrupt loss on freescale eSDHC
mmc: esdhc-imx: fix card interrupt loss on freescale eSDHC

Apply a workaround for the imx eSDHC controller to avoid missing
card interrupts.  This makes SDIO work.

Signed-off-by: Tony Lin <70e9394ac4108324204b27464baf785fe94a83e6@freescale.com>
Signed-off-by: Chris Ball <6ca7faee6ca9a094b1ee341f11b840a5608a8746@laptop.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs