Add empty ipmi_pass file to the root image

Empty ipmi_pass file is added to the root image. This way the
same can be overridden as needed.

Unit Test:
Verified by making sure /etc/ipmi_pass exists by default.

Change-Id: Ifed643ec6d567d251a9178653db1558bbb8a647e
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
diff --git a/Makefile.am b/Makefile.am
index 88dda05..dc69bc8 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,7 +2,7 @@
 
 CLEANFILES = *~
 
-sysconf_DATA = key_file
+sysconf_DATA = key_file ipmi_pass
 securelibdir = /lib/security
 securelib_LTLIBRARIES = pam_ipmicheck.la pam_ipmisave.la
 
diff --git a/ipmi_pass b/ipmi_pass
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/ipmi_pass