In the nomadik GPIO pin configuration, allow the sleep mode direction
and pull configurations to differ from the ones for the normal state.
PIN_SLPM_PULL_*, PIN_SLPM_INPUT, PIN_SLPM_OUTPUT* macros are provided
for this.

Since the hardware does not allow seperate configurations for sleep mode
and normal mode, this is implemented by having software remux the
configurations as necessary.
Reviewed-by: NSrinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
Signed-off-by: NRabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: NMian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>