pinctrl: mediatek: Add EINT support for multiple addresses

For flexible routing, eint will be divided into 5 bases,
and it will obtain the operation address through the pins array.

Signed-off-by: Hao Chang <[email protected]>
Signed-off-by: Qingliang Li <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Linus Walleij <[email protected]>

Author: hvbjvb