sunxi: fix bootargs when building without net

Signed-off-by: Michel-FK <[email protected]>

Author: Michel-FK

include/configs/sunxi-common.h

@@ -395,6 +395,18 @@ extern int soft_i2c_gpio_scl;
 #define BOOTENV_DEV_NAME_FEL(devtypeu, devtypel, instance) \
 	"fel "
 
+#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) \
 	func(FEL, fel, na) \
 	BOOT_TARGET_DEVICES_MMC(func) \