Update all rpms for Fedora 28

Bring along the required rpms for the ride on Fedora 28 (we really
should find a way to maybe do f* or something to avoid this
... consider it a todo :)

Change-Id: I37fd38de9baab478c86d23ea2cebca59dc8a5ed1
diff --git a/files/rpms/general b/files/rpms/general
index 5d9a4ad..c7863e4 100644
--- a/files/rpms/general
+++ b/files/rpms/general
@@ -9,9 +9,9 @@
 graphviz # needed only for docs
 httpd
 httpd-devel
-iptables-services  # NOPRIME f25,f26,f27
+iptables-services  # NOPRIME f25,f26,f27,f28
 java-1.7.0-openjdk-headless  # NOPRIME rhel7
-java-1.8.0-openjdk-headless  # NOPRIME f25,f26,f27
+java-1.8.0-openjdk-headless  # NOPRIME f25,f26,f27,f28
 libffi-devel
 libjpeg-turbo-devel # Pillow 3.0.0
 libxml2-devel # lxml