use new sdbus++ camelcase

Change I17a8d7479556596a3cf252b3f4eae9c8df547189 will change
how sdbus++ generates names which start with an acronym.
Prepare for this by keying off the SDBUSPP_NEW_CAMELCASE
define to use the new format.

Changes:
    dHCPEnabled -> dhcpEnabled
    dNSEnabled -> dnsEnabled
    iP -> ip
    iPAddress -> ipAddress
    iPv6AcceptRA -> ipv6AcceptRA
    mACAddress -> macAddress
    nICEnabled -> nicEnabled
    nTPEnabled -> ntpEnabled
    nTPServers -> ntpServers

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I35da2c4f8fc33262d6d096e499220419ebe4d00d
diff --git a/network_manager.cpp b/network_manager.cpp
index c55c9bb..10a2573 100644
--- a/network_manager.cpp
+++ b/network_manager.cpp
@@ -219,7 +219,7 @@
         if (interface.first == inventoryEthPair.first)
         {
             auto returnMAC =
-                interface.second->mACAddress(inventoryEthPair.second);
+                interface.second->macAddress(inventoryEthPair.second);
             if (returnMAC == inventoryEthPair.second)
             {
                 log<level::INFO>("Set the MAC on "),