[qca-nss-drv]: New API support for PPPoE

Addded new API support for PPPoE.
Currently PPPoE rule destroy function is kept as it is,
it calls new API to send msg to NSS. This function and its registration
should be removed once linux kernel dirctly calls new API to
destroy PPPoE rule on NSS.

Change-Id: I5729983d7767d603e15dd5f8f08cd55bb33aebbc
Signed-off-by: Ankit Dhanuka <adhanuka@codeaurora.org>
diff --git a/Makefile b/Makefile
index e2986fc..83a9220 100644
--- a/Makefile
+++ b/Makefile
@@ -37,7 +37,8 @@
 			nss_tun6rd.o \
 			nss_tunipip6.o \
 			nss_virt_if.o \
-			nss_shaper.o
+			nss_shaper.o \
+			nss_pppoe.o
 
 #
 # TODO: Deprecated files should be removed before merge