Include ipmi_pass to the image through pam-ipmi

Update pam-ipmi recipe to add ipmi_pass file to the image

Unit test:
Verified by making sure files is copied to the update bmc image.

(From meta-phosphor rev: 2d569e24598c82b078f18b07255767e8ace287c0)

Change-Id: I9a5f4b169b0427e61795397ad63a8d2a59a03e44
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/recipes-core/pam/pam-ipmi_git.bb b/meta-phosphor/recipes-core/pam/pam-ipmi_git.bb
index 1e7e376..4e74a94 100644
--- a/meta-phosphor/recipes-core/pam/pam-ipmi_git.bb
+++ b/meta-phosphor/recipes-core/pam/pam-ipmi_git.bb
@@ -19,4 +19,5 @@
 FILES_${PN} += " \
                ${base_libdir}/security/ \
                ${sysconfdir}/key_file \
+               ${sysconfdir}/ipmi_pass \
                "