dt-bindings: soc: fsl: fsl,ls1028a-reset: Fix maintainer entry

make dt_binding_check:

    Documentation/devicetree/bindings/soc/fsl/fsl,ls1028a-reset.yaml: maintainers:0: 'Frank Li' does not match '@'
	    from schema $id: http://devicetree.org/meta-schemas/base.yaml#



Fix this by adding Frank's email address.

Fixes: 9ca5a7d9 ("dt-bindings: soc: fsl: Add fsl,ls1028a-reset for reset syscon node")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/185e1e06692dc5b08abcde2d3dd137c78e979d08.1744301283.git.geert+renesas@glider.be


Signed-off-by: Rob Herring (Arm) <robh@kernel.org>