Per nxp,ptn5110.yaml, also pass the fallback "tcpci" compatible
to fix the following dt-schema warning:

 usb-typec@50: compatible: ['nxp,ptn5110'] is too short
	from schema $id: http://devicetree.org/schemas/usb/nxp,ptn5110.yaml#Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>