fsl-layerscape/ppa: cleanup ppa.h

Moved the ifdef into ppa.h and removed the duplicated macros.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/ppa.h b/arch/arm/include/asm/arch-fsl-layerscape/ppa.h
index 1f1442b..da4098e 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/ppa.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/ppa.h
@@ -7,10 +7,7 @@
 #ifndef __FSL_PPA_H_
 #define __FSL_PPA_H_
 
-#define SEC_FIRMWARE_FIT_IMAGE		"firmware"
-#define SEC_FIRMEWARE_FIT_CNF_NAME	"config@1"
-#define SEC_FIRMWARE_TARGET_EL		2
-
+#ifdef CONFIG_FSL_LS_PPA
 int ppa_init(void);
-
+#endif
 #endif