sdhci: sdio interrupt support
sdhci: sdio interrupt support

Add support for relaying the sdio interrupt signal from the card.

Signed-off-by: Pierre Ossman <8b64f2aeec7ea42cd6838e5b2901f7aa61dfa5d4@drzeus.cx>

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