ARMv8/layerscape: Add FSL PPA support

The FSL Primary Protected Application (PPA) is a software component
loaded during boot which runs in TrustZone and remains resident
after boot.

Use the secure firmware framework to integrate FSL PPA into U-Boot.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/include/asm/armv8/sec_firmware.h b/arch/arm/include/asm/armv8/sec_firmware.h
index 39a1333..eb68185 100644
--- a/arch/arm/include/asm/armv8/sec_firmware.h
+++ b/arch/arm/include/asm/armv8/sec_firmware.h
@@ -7,6 +7,10 @@
 #ifndef __SEC_FIRMWARE_H_
 #define __SEC_FIRMWARE_H_
 
+#ifdef CONFIG_FSL_LS_PPA
+#include <asm/arch/ppa.h>
+#endif
+
 int sec_firmware_init(const void *, u32 *, u32 *);
 int _sec_firmware_entry(const void *, u32 *, u32 *);
 bool sec_firmware_is_valid(const void *);