[U-Boot] MMC broken after a7778f8fbee098c78b1fa1e1331313a7e217fb30

Hi,

this commit is breaking MMC support on Nokia N900: a7778f8fbee098c78b1fa1e1331313a7e217fb30 omap_hsmmc: Wait for CMDI to be clear

I'm geting only error message "timedout waiting on cmd inhibit to clear" and I cannot read files from eMMC and SD card. When I reverted commit that commit I all is OK.