Even when the polkit configure script detects elogind, it does not use
it.  This patch ensures that elogind is used when it is detected.

diff -ruN a/configure b/configure
--- a/configure	1969-12-31 19:00:01.000000000 -0500
+++ b/configure	2021-11-19 00:04:55.581385020 -0500
@@ -20390,7 +20390,7 @@
 
 
 
- if test "$have_libsystemd" = "yes"; then
+ if test "$have_libsystemd" = "yes" || test "$have_libelogind" = "yes"; then
   HAVE_LIBSYSTEMD_TRUE=
   HAVE_LIBSYSTEMD_FALSE='#'
 else