atmel_mci: rename atmel_mci_readl/writel to atmci_readl/writel
to be consistent with the kernel
This also reduce the ligne length
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>