uboot-imx

MLK-20886-4 lpi2c: Provide override binding function

We provide override binding function, so the ARCH level can use it
to determine if it is ok to bind with lpi2c driver.

Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit b19418270a3d532eacb1069606fa2ab100e04601)