In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 
1373884 ("Missing break in switch")
Addresses-Coverity-ID: 114869 ("Missing break in switch")
Addresses-Coverity-ID: 114870 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
 
                         * be a result of power cut during erasure.
                         */
                        ai->maybe_bad_peb_count += 1;
+               /* fall through */
        case UBI_IO_BAD_HDR:
                        /*
                         * If we're facing a bad VID header we have to drop *all*
 
        switch (*endp) {
        case 'G':
                result *= 1024;
+               /* fall through */
        case 'M':
                result *= 1024;
+               /* fall through */
        case 'K':
                result *= 1024;
                if (endp[1] == 'i' && endp[2] == 'B')