aspeed/soc: Support GPIO for AST2700

Add GPIO model for AST2700 GPIO support. The GPIO controller registers base
address is start at 0x14C0_B000 and its address space is 0x1000.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
1 file changed