kernel.bbclass: Avoid wildcards for kernel images
With multiple kernel images enabled starting with 'vmlinux', e.g.
vmlinux.gz and vmlinux.bin, all files landed inside the
kernel-vmlinux package.
On top of that, even initramfs images were included, e.g.
vmlinux.gz-initramfs-*.
(From OE-Core rev:
b7f4133b44b740e8ac8e758b0d4a3ee32d326332)
Signed-off-by: Andreas Oberritter <obi@opendreambox.org>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
