[ARM] 4988/1: Add GPIO lib support to the EP93xx
Ryan Mallon authored

Adds support for the generic GPIO lib to the EP93xx family. The gpio
handling code has been moved from core.c to a new file called gpio.c.
The GPIO based IRQ code has not been changed.
Signed-off-by: default avatarRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
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