[ Upstream commit b614e905 ]

Bindings describe hardware, not drivers.
Use reference to hardware Allwinner A1X Pin Controller instead driver.
Signed-off-by: Matheus Castello <matheus@castello.eng.br>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>