Add GPIO pin details specific to SC7280 chipset for the
consumers to be able to request for the gpio functionality
as per their requirement.

BUG=b:182963902
TEST=Validated on qualcomm sc7280 development board

Signed-off-by: Taniya Das <tdas@codeaurora.org>
Change-Id: Ia774511cc68bed9d24b00d7d636e233a91ed3998
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/2959255


Reviewed-by: Shelley Chen <shchen@chromium.org>
Commit-Queue: Shelley Chen <shchen@chromium.org>
Tested-by: Shelley Chen <shchen@chromium.org>