arm: rmobile: koelsch: Change name of structure

This changes from r8a7791_ to rcar_.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/koelsch/koelsch.c b/board/renesas/koelsch/koelsch.c
index 32d3b58..10dc088 100644
--- a/board/renesas/koelsch/koelsch.c
+++ b/board/renesas/koelsch/koelsch.c
@@ -40,8 +40,8 @@
 #if defined(CONFIG_NORFLASH)
 static void bsc_init(void)
 {
-	struct r8a7791_lbsc *lbsc = (struct r8a7791_lbsc *)LBSC_BASE;
-	struct r8a7791_dbsc3 *dbsc3_0 = (struct r8a7791_dbsc3 *)DBSC3_0_BASE;
+	struct rcar_lbsc *lbsc = (struct rcar_lbsc *)LBSC_BASE;
+	struct rcar_dbsc3 *dbsc3_0 = (struct rcar_dbsc3 *)DBSC3_0_BASE;
 
 	/* LBSC */
 	writel(0x00000020, &lbsc->cs0ctrl);
@@ -187,8 +187,8 @@
 
 void s_init(void)
 {
-	struct r8a7791_rwdt *rwdt = (struct r8a7791_rwdt *)RWDT_BASE;
-	struct r8a7791_swdt *swdt = (struct r8a7791_swdt *)SWDT_BASE;
+	struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
+	struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE;
 
 	/* Watchdog init */
 	writel(0xA5A5A500, &rwdt->rwtcsra);