rockchip: fix boot_devices constants

The DT node name pattern in mmc-controller.yaml for mmc
is "^mmc(@.*)?$". The Rockchip mmc nodes have been synced
with Linux, so update the boot_devices constants as well.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/mach-rockchip/rk3188/rk3188.c b/arch/arm/mach-rockchip/rk3188/rk3188.c
index 5a02914..df8fa15 100644
--- a/arch/arm/mach-rockchip/rk3188/rk3188.c
+++ b/arch/arm/mach-rockchip/rk3188/rk3188.c
@@ -21,8 +21,8 @@
 #define GRF_BASE	0x20008000
 
 const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
-	[BROM_BOOTSOURCE_EMMC] = "/dwmmc@1021c000",
-	[BROM_BOOTSOURCE_SD] = "/dwmmc@10214000",
+	[BROM_BOOTSOURCE_EMMC] = "/mmc@1021c000",
+	[BROM_BOOTSOURCE_SD] = "/mmc@10214000",
 };
 
 #ifdef CONFIG_DEBUG_UART_BOARD_INIT