arm64: dts: imx93-phyboard-segin: Add PEB-WLBT-05 overlay

Add support for PEB-WLBT-05 WLAN/BT adapter on phyBOARD-Segin-i.MX93.
The PEB-WLBT-05 is equipped with a Sterling-LWB radio module, which is
capable of Wi-Fi 802.11 b/g/n and Bluetooth 4.2.

Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>