plat: renesas: common: Include ulcb_cpld.h conditionally

Include header ulcb_cpld.h in plat_pm.c only if RCAR_GEN3_ULCB
is enabled.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: Ie89223097c608265c50e32778e8df28feed82480
diff --git a/plat/renesas/common/plat_pm.c b/plat/renesas/common/plat_pm.c
index 7ec78cc..6a9ad45 100644
--- a/plat/renesas/common/plat_pm.c
+++ b/plat/renesas/common/plat_pm.c
@@ -21,7 +21,9 @@
 #include "pwrc.h"
 #include "rcar_def.h"
 #include "rcar_private.h"
+#if RCAR_GEN3_ULCB
 #include "ulcb_cpld.h"
+#endif /* RCAR_GEN3_ULCB */
 
 #define DVFS_SET_VID_0V		(0x00)
 #define P_ALL_OFF		(0x80)