networkd-config: adding new line character before DHCP section

Resolves openbmc/openbmc#1386

Change-Id: I03fafc64a21bb96f21b28cb88476be8eaa511ffd
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>
diff --git a/netman.py b/netman.py
index 230cb5e..aa19de0 100755
--- a/netman.py
+++ b/netman.py
@@ -308,7 +308,7 @@
         networkconf.write ('[Match]'+ '\n')
         networkconf.write ('Name=' + (device) + '\n')
         networkconf.write ('[Network]' + '\n')
-        networkconf.write ('DHCP=yes')
+        networkconf.write ('DHCP=yes' + '\n')
         networkconf.write ('[DHCP]' + '\n')
         networkconf.write ('ClientIdentifier=mac' + '\n')
         networkconf.close ()