dts: arm: stm32g4: fix bosch m_can compatible

The binding was erroneously changed in commit 988fe8d, which led to
build failures. This commit reverts the change.

Signed-off-by: Martin Jäger <[email protected]>

Author: martinjaeger

dts/arm/st/g4/stm32g4.dtsi

@@ -353,7 +353,7 @@
 		};
 
 		can {
-			compatible = "bosch,m-can-base";
+			compatible = "bosch,m_can-base";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			std-filter-elements = <28>;