pam-ipmi: Include seed data as key file

Content in the file will be used by pam_ipmisave as seed
to generate the key.

Change-Id: Ib7d71b504530d70727ae8ab703efce8fb4bc9146
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
diff --git a/Makefile.am b/Makefile.am
index c979d72..7e681b5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,6 @@
 CLEANFILES = *~
 
+sysconf_DATA = key_file
 securelibdir = /lib/security
 securelib_LTLIBRARIES = pam_ipmicheck.la pam_ipmisave.la