genimage: make bzImage link unvarying

The bzImage link won't affect multi kernel support.
But its changing can cause RR patch apply failed with below error
after initial INSVC patch apply and removal:
OSTree:ERROR:src/libostree/ostree-sysroot-deploy.c:1630:
install_deployment_kernel: assertion failed
(kernel_layout->bootcsum == bootcsum)

Make bzImage link unvarying.

Signed-off-by: Li Zhou <li.zhou@windriver.com>

recipes-support/genimage/files/genimage/genimage.py

@@ -922,7 +922,7 @@ def _do_rootfs_post(self, rootfs=None):
         utils.run_cmd_oneshot("cp -r -f %s/* %s" % (rootfs_efi, self.deploydir))
 
         # Create symlink bzIamge to kernel
-        for kernel in glob.glob(os.path.join(self.deploydir, 'vmlinuz-*-amd64')):
+        for kernel in glob.glob(os.path.join(self.deploydir, 'vmlinuz-*[0-9]-amd64')):
             utils.run_cmd_oneshot("ln -snf -r %s bzImage" % kernel, cwd=self.deploydir)
             if self.data['gpg']['grub'].get('EFI_SECURE_BOOT', 'disable') == 'enable':
                 utils.run_cmd_oneshot("ln -snf -r %s.sig bzImage.sig" % kernel, cwd=self.deploydir)