Add missing files to the Low Level Device RNDIS demo inside Atmel Studio.

Demos/Device/LowLevel/RNDISEthernet/asf.xml

@@ -50,6 +50,7 @@
 		<build type="c-source" value="Lib/ICMP.c"/>
 		<build type="c-source" value="Lib/IP.c"/>
 		<build type="c-source" value="Lib/ProtocolDecoders.c"/>
+		<build type="c-source" value="Lib/RNDIS.c"/>
 		<build type="c-source" value="Lib/TCP.c"/>
 		<build type="c-source" value="Lib/UDP.c"/>
 		<build type="c-source" value="Lib/Webserver.c"/>
@@ -61,6 +62,7 @@
 		<build type="header-file" value="Lib/ICMP.h"/>
 		<build type="header-file" value="Lib/IP.h"/>
 		<build type="header-file" value="Lib/ProtocolDecoders.h"/>
+		<build type="header-file" value="Lib/RNDIS.h"/>
 		<build type="header-file" value="Lib/TCP.h"/>
 		<build type="header-file" value="Lib/UDP.h"/>
 		<build type="header-file" value="Lib/Webserver.h"/>