Fix autoheader warnings

Fix autoheader warnings

autoheader complains after 1.44.6 release:
autoheader: warning: missing template: HAVE_BLKID_PROBE_ENABLE_PARTITIONS
autoheader: Use AC_DEFINE([HAVE_BLKID_PROBE_ENABLE_PARTITIONS], [], [Description])
autoheader: warning: missing template: HAVE_BLKID_PROBE_GET_TOPOLOGY

This could fail automatic rpm builds.
Fixes: 7154d97 ("Check for the newer blkid functions without adding blkid to @LIBS@")

Signed-off-by: Li Dongyang <dongyangli@ddn.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>