pinctrl: sirf: wrap all gpio banks into one gpio_chip
pinctrl: sirf: wrap all gpio banks into one gpio_chip

all gpio banks are in one chip, that makes software clean in mapping
irq and gpio.

Signed-off-by: Barry Song <a856445693a373abed3e477bd705f7011cbd8a1d@csr.com>
Signed-off-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs