This will not allow simultaneous use of the same pin for GPIO and
another function. If user use a pin in such way, an error would be
reported, make it easier to debug.
d401e000.pinctrl: pin PIN80 already requested by k1x-gpio:79; cannot claim for xxx
Signed-off-by: Junzhong Pan <junzhong.pan@spacemit.com>
Change-Id: I0aad1e6a55ac46c47537d18bdb8586779f290435