blsuki: Check for mounted /boot in emu

Irritatingly, BLS defines paths relative to the mountpoint of the
filesystem which contains its snippets, not / or any other fixed
location. So grub-emu needs to know whether /boot is a separate
filesystem from / and conditionally prepend a path.

Signed-off-by: Robbie Harwood <rharwood@redhat.com>
Signed-off-by: Alec Brown <alec.r.brown@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

grub-core/osdep/unix/getroot.c

@@ -16,8 +16,8 @@
  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <config.h>
 #include <config-util.h>
+#include <config.h>
 
 #include <sys/stat.h>
 #include <sys/types.h>
@@ -566,6 +566,7 @@ grub_guess_root_devices (const char *dir_in)
 
 #endif
 
+#ifdef GRUB_UTIL
 void
 grub_util_pull_lvm_by_command (const char *os_dev)
 {
@@ -662,6 +663,7 @@ out:
   free (buf);
   free (vgid);
 }
+#endif
 
 /* ZFS has similar problems to those of btrfs (see above).  */
 void