dbginfo.sh: Add NetworkManager and netplan

NetworkManager stores new network profiles in keyfile format in the
/etc/NetworkManager/system-connections/ directory.

/etc/network/interfaces might be replaced by /etc/netplan on some systems

Reviewed-by: Mario Held <mario.held@de.ibm.com>
Reviewed-by: Michael Storzer <MSTORZER@de.ibm.com>
Signed-off-by: Jörn Siglen <siglen@de.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

scripts/dbginfo.sh

@@ -435,8 +435,10 @@ CONFIGFILES="\
   /etc/modules-load.d/*.conf\
   /etc/mtab\
   /etc/multipath\
+  /etc/netplan\
   /etc/network\
   /etc/networks\
+  /etc/NetworkManager\
   /etc/opencryptoki/*.conf\
   /etc/pam.d\
   /etc/profile\