initramfs: introduce additional utilities
initramfs: introduce additional utilities

To support more complex installation scripts, we introduce the following
utilities to the default initramfs: bzip2 vim which sed tar

Signed-off-by: Bruce Ashfield <284cc737d174a260eec2a2a6324a304f84b1ae0f@windriver.com>

mufeng/meta-overc,WindRiver-OpenSourceLabs/meta-overc,OverC/meta-overc,jwessel/meta-overc,masselstine/meta-overc,jwessel/meta-overc,paw3142/meta-overc-1,paw3142/meta-overc-1,masselstine/meta-overc,masselstine/meta-overc,WindRiver-OpenSourceLabs/meta-overc,OverC/meta-overc,mufeng/meta-overc,OverC/meta-overc,OverC/meta-overc,jwessel/meta-overc,mufeng/meta-overc,masselstine/meta-overc,OverC/meta-overc,WindRiver-OpenSourceLabs/meta-overc,OverC/meta-overc