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/dhcp_configuration.cpp b/dhcp_configuration.cpp
index 7707461..690ae47 100644
--- a/dhcp_configuration.cpp
+++ b/dhcp_configuration.cpp
@@ -45,14 +45,14 @@
     return name;
 }
 
-bool Configuration::nTPEnabled(bool value)
+bool Configuration::ntpEnabled(bool value)
 {
-    if (value == nTPEnabled())
+    if (value == ntpEnabled())
     {
         return value;
     }
 
-    auto ntp = ConfigIntf::nTPEnabled(value);
+    auto ntp = ConfigIntf::ntpEnabled(value);
     manager.writeToConfigurationFile();
     manager.restartSystemdUnit(phosphor::network::networkdService);
     manager.restartSystemdUnit(phosphor::network::timeSynchdService);
@@ -60,14 +60,14 @@
     return ntp;
 }
 
-bool Configuration::dNSEnabled(bool value)
+bool Configuration::dnsEnabled(bool value)
 {
-    if (value == dNSEnabled())
+    if (value == dnsEnabled())
     {
         return value;
     }
 
-    auto dns = ConfigIntf::dNSEnabled(value);
+    auto dns = ConfigIntf::dnsEnabled(value);
     manager.writeToConfigurationFile();
     manager.restartSystemdUnit(phosphor::network::networkdService);