removed setting ip in bootargs - it delays boot by a few minutes if the cable is not connected

src/arch/arm/boot/dts/elphel393-bootargs-mmc.dtsi

 /**/
 / {
 	chosen {
-		bootargs = "cma=336M console=ttyPS0,115200 root=/dev/mmcblk0p2 rw ip=192.168.0.8 earlyprintk rootwait rootfstype=ext4";
+		bootargs = "cma=336M console=ttyPS0,115200 root=/dev/mmcblk0p2 rw earlyprintk rootwait rootfstype=ext4";
 		linux,stdout-path = "/amba@0/serial@e0000000";
 	};
 };

src/arch/arm/boot/dts/elphel393-bootargs-nand.dtsi

 /**/
 / {
 	chosen {
-		bootargs = "cma=336M console=ttyPS0,115200 root=ubi0:elphel393-rootfs rw ip=192.168.0.8 earlyprintk rootwait rootfstype=ubifs ubi.mtd=4,2048";
+		bootargs = "cma=336M console=ttyPS0,115200 root=ubi0:elphel393-rootfs earlyprintk rootwait rootfstype=ubifs ubi.mtd=4,2048";
 		linux,stdout-path = "/amba@0/serial@e0000000";
 	};
 };

src/arch/arm/boot/dts/elphel393-bootargs-ram.dtsi

 /**/
 / {
 	chosen {
-		bootargs = "cma=336M console=ttyPS0,115200 root=/dev/ram rw ip=192.168.0.8 earlyprintk ramdisk_size=262144";
+		bootargs = "cma=336M console=ttyPS0,115200 root=/dev/ram rw earlyprintk ramdisk_size=262144";
 		linux,stdout-path = "/amba@0/serial@e0000000";
 	};
 };

src/arch/arm/boot/dts/elphel393-zynq-base.dtsi

@@ -11,7 +11,7 @@
 	} ;
 	chosen {
 /*		bootargs = "console=ttyPS0,115200 debug root=/dev/ram rw ip=192.168.0.9 earlyprintk ramdisk_size=262144";*/
-		bootargs = "cma=128M console=ttyPS0,115200 root=/dev/mmcblk0p2 rw ip=192.168.0.8 earlyprintk rootwait rootfstype=ext4";
+		bootargs = "cma=128M console=ttyPS0,115200 root=/dev/mmcblk0p2 rw earlyprintk rootwait rootfstype=ext4";
 		linux,stdout-path = "/amba@0/serial@e0000000";
 	} ;
 	cpus {