core-image-tiny: Add additional utilities/packages

For core-image-tiny add in related packagegroup some new
utilities/packages: grep, sed, kmod, initscripts.

Signed-off-by: Paul Butler <paul.butler@windriver.com>
sysvinit: Add initial receipe and scripts

Signed-off-by: Paul Butler <paul.butler@windriver.com>
linux-yocto/u-boot-lsi: Update SRCREV to tags 7.8.1.10 and 5.8.1.14

Signed-off-by: Paul Butler <paul.butler@windriver.com>