dts: bindings: Add 'quectel,bg96'

Add a compatible for Quectel BG96 to be used in the modem_cellular
subsystem.

Signed-off-by: Guilherme Costa <[email protected]>

Author: guildeol-stra

dts/bindings/modem/quectel,bg96.yaml

@@ -0,0 +1,23 @@
+# Copyright (c) 2025 Guilherme Costa
+# SPDX-License-Identifier: Apache-2.0
+
+description: quectel BG96 modem
+
+compatible: "quectel,bg96"
+
+include: uart-device.yaml
+
+properties:
+  mdm-power-gpios:
+    type: phandle-array
+
+  mdm-reset-gpios:
+    type: phandle-array
+
+  autostarts:
+    type: boolean
+    description: |
+      Set for modem variants or carrier boards that start the module
+      automatically when supply voltage is applied—that is, the modem
+      asserts PWRKEY internally and does not require an external PWRKEY
+      pulse.