rockchip: configs: only add available BOOT_TARGET_DEVICES

BOOT_TARGET_DEVICES should only be added if the corresponding u-boot
command is enabled.

Signed-off-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

include/configs/rockchip-common.h

@@ -11,22 +11,39 @@
 #ifndef CONFIG_SPL_BUILD
 #include <config_distro_defaults.h>
 
-/* First try to boot from SD (index 0), then eMMC (index 1 */
-#ifdef CONFIG_CMD_USB
-#define BOOT_TARGET_DEVICES(func) \
-	func(MMC, mmc, 0) \
-	func(MMC, mmc, 1) \
-	func(USB, usb, 0) \
-	func(PXE, pxe, na) \
-	func(DHCP, dchp, na)
+/* First try to boot from SD (index 0), then eMMC (index 1) */
+#if CONFIG_IS_ENABLED(CMD_MMC)
+	#define BOOT_TARGET_MMC(func) \
+		func(MMC, mmc, 0) \
+		func(MMC, mmc, 1)
 #else
-#define BOOT_TARGET_DEVICES(func) \
-	func(MMC, mmc, 0) \
-	func(MMC, mmc, 1) \
-	func(PXE, pxe, na) \
-	func(DHCP, dchp, na)
+	#define BOOT_TARGET_MMC(func)
 #endif
 
+#if CONFIG_IS_ENABLED(CMD_USB)
+	#define BOOT_TARGET_USB(func) func(USB, usb, 0)
+#else
+	#define BOOT_TARGET_USB(func)
+#endif
+
+#if CONFIG_IS_ENABLED(CMD_PXE)
+	#define BOOT_TARGET_PXE(func) func(PXE, pxe, na)
+#else
+	#define BOOT_TARGET_PXE(func)
+#endif
+
+#if CONFIG_IS_ENABLED(CMD_DHCP)
+	#define BOOT_TARGET_DHCP(func) func(DHCP, dhcp, na)
+#else
+	#define BOOT_TARGET_DHCP(func)
+#endif
+
+#define BOOT_TARGET_DEVICES(func) \
+	BOOT_TARGET_MMC(func) \
+	BOOT_TARGET_USB(func) \
+	BOOT_TARGET_PXE(func) \
+	BOOT_TARGET_DHCP(func)
+
 #ifdef CONFIG_ARM64
 #define ROOT_UUID "B921B045-1DF0-41C3-AF44-4C6F280D3FAE;\0"
 #else