gpio: Add custom driver for Axxia SoCs

commit  b7650ad7159a084815f92c9430b4469224833d7c from
https://github.com/axxia/linux-yocto.git

 axxia-linux/v5.10/standard/axxia-dev/base

Some of the Axxia SoCs have a different interrupt structure
than the standard PL061 driver. This commit adds a driver
based on the PL061 driver but with the Axxia interrupt structure.

Signed-off-by: John Jacques <john.jacques@intel.com>
Signed-off-by: Charlie Paul <charlie.paul@windriver.com>
Signed-off-by: Daniel Dragomir <daniel.dragomir@windriver.com>
Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>