rockchip: spl: Add SPI NOR flash to boot_devices array

Add missing boot source id <-> device tree node path mapping for SPI NOR
flash on PX30, RK3288, RK3308, RK3368 and RV1126.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
diff --git a/arch/arm/mach-rockchip/rk3368/rk3368.c b/arch/arm/mach-rockchip/rk3368/rk3368.c
index 651ba10..8f5ca1d 100644
--- a/arch/arm/mach-rockchip/rk3368/rk3368.c
+++ b/arch/arm/mach-rockchip/rk3368/rk3368.c
@@ -55,6 +55,7 @@
 
 const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
 	[BROM_BOOTSOURCE_EMMC] = "/mmc@ff0f0000",
+	[BROM_BOOTSOURCE_SPINOR] = "/spi@ff120000/flash@0",
 	[BROM_BOOTSOURCE_SD] = "/mmc@ff0c0000",
 };