hello-mod: Ensure the produced package name begins with kernel-module-

hello-mod: Ensure the produced package name begins with kernel-module-

The special key kernel-module- is necessary for the system to avoid a package
rename when installing a multilib image.  For example:

local.conf: IMAGE_INSTALL_append = " hello-mod"

bitbake lib32-core-image-minimal

The system will translate names and prepend 'lib32-', unless the package
begins with kernel-module-.

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>