mpc85xx: Remove inittab workaround

The default inittab uses "askconsole" which is implemented by procd
and uses the console provided by the kernel command line.

Hence, this platform specific workaround is not necessary anymore.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 39367