Fix possible and absolute memory leaks of "handles"
returned by grub_efi_locate_handle() using grub_malloc().
Signed-off-by: Khalid Ali <khaliidcaliy@gmail.com>
Reviewed-by: Sudhakar Kuppusamy <sudhakar@linux.ibm.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>