ARM: phytec-som-am335x: Remove bootargs-ip from boot scripts
We do not pass the ip to kernel any more. So remove adding
it to bootargs when booting from nand, mmc or spi nor.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>