plat/arm: scp: Move to drivers/ folder

Change-Id: Ida5dae39478654405d0ee31a6cbddb4579e76a7f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/plat/arm/css/common/css_bl2u_setup.c b/plat/arm/css/common/css_bl2u_setup.c
index c3b4f2b..15cf4f6 100644
--- a/plat/arm/css/common/css_bl2u_setup.c
+++ b/plat/arm/css/common/css_bl2u_setup.c
@@ -6,11 +6,10 @@
 
 #include <common/bl_common.h>
 #include <common/debug.h>
+#include <drivers/arm/css/css_scp.h>
 #include <plat/arm/common/plat_arm.h>
 #include <plat/common/platform.h>
 
-#include "../drivers/scp/css_scp.h"
-
 /* Weak definition may be overridden in specific CSS based platform */
 #pragma weak bl2u_plat_handle_scp_bl2u