[qca-nss-drv] Add dscp2pri support.

This new feature maintains dscp to priority/action mapping
table in the procsys file system.

Change-Id: I195d3c3222faac6da9809a586f25c2a29e92234b
Signed-off-by: Murat Sezgin <msezgin@codeaurora.org>
diff --git a/nss_init.c b/nss_init.c
index 05314b1..0f81a04 100644
--- a/nss_init.c
+++ b/nss_init.c
@@ -735,6 +735,11 @@
 	nss_n2h_register_sysctl();
 
 	/*
+	 * Registering sysctl for dscp2pri specific config.
+	 */
+	nss_dscp2pri_register_sysctl();
+
+	/*
 	 * Setup Runtime Sample values
 	 */
 	nss_runtime_samples.freq_scale_index = 1;
@@ -820,6 +825,7 @@
 	nss_ipv4_unregister_sysctl();
 	nss_ipv6_unregister_sysctl();
 
+	nss_dscp2pri_unregister_sysctl();
 	nss_data_plane_destroy_delay_work();
 
 	/*