PXA I2C module is also used in Marvell PXA168 and PXA910 series.
Update the module dependancy of PXA I2C.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>