soc: arm: ti_k3: am62x_m4: Lower Initialization level for init

Other drivers like the pinctrl_ti_k3 rely on a fully initialized system.
Move the am62x_init to an earlier stage than PRE_KERNEL_1 to keep both
PRE_KERNEL_{1,2} free for drivers.

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>

soc/arm/ti_k3/am62x_m4/soc.c

@@ -70,4 +70,4 @@ static int am62x_m4_init(void)
 	return 0;
 }
 
-SYS_INIT(am62x_m4_init, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
+SYS_INIT(am62x_m4_init, EARLY, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);