dts: arm: st: mp1: add include for LTDC bindings

Add LTDC bindings include so boards don't have to include it

Signed-off-by: Tomislav Milkovic <[email protected]>

Author: tmilkovic51

dts/arm/st/mp1/stm32mp157.dtsi

@@ -13,6 +13,7 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/pwm/pwm.h>
 #include <zephyr/dt-bindings/pwm/stm32_pwm.h>
+#include <zephyr/dt-bindings/display/stm32_ltdc.h>
 
 / {
 	cpus {