rockchip: rk3368: add boot_devices mapping to support 'same-as-spl'

The driver need a mapping to get the dts node by boot srouce ID.
Signed-off-by: NKever Yang <kever.yang@rock-chips.com>

arch/arm/mach-rockchip/rk3368/rk3368.c

@@ -8,6 +8,7 @@
 #include <syscon.h>
 #include <asm/armv8/mmu.h>
 #include <asm/io.h>
+#include <asm/arch-rockchip/bootrom.h>
 #include <asm/arch-rockchip/clock.h>
 #include <asm/arch-rockchip/cru_rk3368.h>
 #include <asm/arch-rockchip/grf_rk3368.h>
@@ -52,6 +53,11 @@ static struct mm_region rk3368_mem_map[] = {
 
 struct mm_region *mem_map = rk3368_mem_map;
 
+const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
+	[BROM_BOOTSOURCE_EMMC] = "dwmmc@ff0f0000",
+	[BROM_BOOTSOURCE_SD] = "dwmmc@ff0c0000",
+};
+
 int dram_init_banksize(void)
 {
 	size_t max_size = min((unsigned long)gd->ram_size, gd->ram_top);