soc: atmel: sam: Add invalidate d-cache at z_arm_platform_init

Before that fix, the SOC was unable to boot properly.
Starting turned directly into z_arm_usage_fault().
Fixes #73485

Signed-off-by: Sven Ginka <[email protected]>
(cherry picked from commit c3d7b1c)

Author: tswaehn

soc/arm/atmel_sam/same70/soc.c

@@ -122,6 +122,7 @@ void z_arm_platform_init(void)
 	 * sys_cache*-functions can enable them, if requested by the
 	 * configuration.
 	 */
+	SCB_InvalidateDCache();
 	SCB_DisableDCache();
 
 	/*

soc/arm/atmel_sam/samv71/soc.c

@@ -119,6 +119,7 @@ void z_arm_platform_init(void)
 	 * sys_cache*-functions can enable them, if requested by the
 	 * configuration.
 	 */
+	SCB_InvalidateDCache();
 	SCB_DisableDCache();
 
 	/*