Add new GPIO configuration calls that mesh with the
new gpiolib support.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Move the common parts of the GPIO code into plat-s3c
for use with both the s3c24xx and s3c64xx systems.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

All the s3c24xx gpiolib chips share the same get/set
calls and all but one bank shares the same calls for
.direction_input and .direction_output methods.

Change the initialisation process to use an new call
to register the chips that fills in any blank calls
with the default values to avoid having to fill them
in the structure initialisers.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Fix the following problems spotted by sparse:

warning: symbol 's3c24xx_gpiolib_input' was not declared. Should it be static?
warning: symbol 's3c24xx_gpiolib_output' was not declared. Should it be static?
warning: symbol 's3c24xx_gpiolib_set' was not declared. Should it be static?
warning: symbol 's3c24xx_gpiolib_get' was not declared. Should it be static?
warning: symbol 'gpios' was not declared. Should it be static?
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add support for gpilib on all S3C24XX platforms.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>