mvebu: Refresh kernel configuration

mvebu: Refresh kernel configuration

This refreshes the current kernel configuration to remove unneeded
options, add some automatically added ones and reorders them. The normal
build did this automatically, so the builds already used this
configuration.

CONFIG_HW_RANDOM_OMAP is explicitly activated for the cortexa72
subtarget because it has an inside-secure,safexcel-eip76 IP core.

This was done with this command on the cortexa9 subtarget:
	make kernel_oldconfig
and this one on the other subtargets:
	make kernel_oldconfig CONFIG_TARGET=subtarget

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>