Fix build with libxml2-2.12.0

https://github.com/ibm-s390-linux/s390-tools/pull/160

libxml2-parser.patch

@@ -0,0 +1,12 @@
+diff --git a/libkmipclient/kmip.h b/libkmipclient/kmip.h
+index e918577..3344cb0 100644
+--- a/libkmipclient/kmip.h
++++ b/libkmipclient/kmip.h
+@@ -16,6 +16,7 @@
+ #include <openssl/ssl.h>
+ 
+ #include <json-c/json.h>
++#include <libxml/parser.h>
+ #include <libxml/tree.h>
+ #include <curl/curl.h>
+ 

s390utils.spec

@@ -49,6 +49,9 @@ Patch0:         s390-tools-zipl-invert-script-options.patch
 Patch1:         s390-tools-zipl-blscfg-rpm-nvr-sort.patch
 # https://github.com/ibm-s390-linux/s390-tools/pull/155
 Patch2:         snmp-semicolon.patch
+# fix build with libxml2-2.12.0
+# https://github.com/ibm-s390-linux/s390-tools/pull/160
+Patch3:         libxml2-parser.patch
 
 # upstream fixes/updates
 #Patch100:       s390utils-%%{version}-fedora.patch