[ARM] pxa: expand irq support for PXA93x and PXA950
PXA93x/950 has additional 64 GPIOs, each is a secondary interrupt source for IRQ_GPIO_2_x, extend PXA_GPIO_IRQ_{BASE,NUM}. PXA93x/950 specific IRQ definitions are added as well. Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: NEric Miao <eric.y.miao@gmail.com>
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