hello-mod: Add comment for kernel module package naming
modules bbclass renames kernel module packages with "kernel-module-" prefix
automatically.
(From OE-Core rev: 6640f312062ad6648459f0b75086e9a8614300a9)
Signed-off-by: Yang Shi <yang.shi@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>