dt-bindings: arm: fsl: Add i.MX93 Wireless EVK board

dt-bindings: arm: fsl: Add i.MX93 Wireless EVK board

Add DT compatible string for NXP i.MX93 Wireless EVK board.

i.MX93 Wireless SiP is created by integrating i.MX93 and IW610 WLCSP
(Wi-Fi + BLE + 802.15.4). And i.MX93 Wireless EVK board with the i.MX93
Wireless SiP basically reuse the i.MX93 11x11 EVK board, with some minor
functional and pin connection differences.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>