ARM: dts: stm32: lxa-mc1: add OSD32MP15x to list of compatibles

Earlier commit modified the binding, so the SiP is to be specified
as well. Adjust the device tree accordingly.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts

@@ -15,7 +15,7 @@
 
 / {
 	model = "Linux Automation MC-1 board";
-	compatible = "lxa,stm32mp157c-mc1", "st,stm32mp157";
+	compatible = "lxa,stm32mp157c-mc1", "oct,stm32mp15xx-osd32", "st,stm32mp157";
 
 	aliases {
 		ethernet0 = &ethernet0;