Add basis support for Suse os_family: system.grub and system.repo

linux/system/grub.sls

     - mode: 755
     - makedirs: True
 
-{%- if grains['os_family'] == 'RedHat' %}
+{%- if grains['os_family'] in ['RedHat','Suse'] %}
   {%- set boot_grub_cfg = '/boot/grub2/grub.cfg' %}
 /etc/default/grub:
   file.append:

linux/system/repo.sls

       {%- endif %}
     {%- endif %}
 
-    {%- if grains.os_family == "RedHat" %}
+    {%- if grains.os_family in ["RedHat", "Suse"] %}
 
       {%- if repo.get('enabled', True) %}
         {%- if repo.get('proxy', {}).get('enabled', False) %}