qcacmn: Add support to use generic netlink sockets for userspace apps

Currently user space communication functions[cnss diag, PTT socket app]
in host driver uses netlink user sockets which is a security concern from
Linux Android SE policies.

Add support for to use netlink family cld80211 which uses generic
netlink sockets.

Change-Id: Ia833249c1f312415e38563d90214979cea3d9f0e
CRs-Fixed: 2015931

utils/ptt/inc/wlan_ptt_sock_svc.h

@@ -119,6 +119,19 @@ typedef struct sAniAppRegReq {
 	tAniNlModTypes type;    /* module id */
 	int pid;                /* process id */
 } tAniNlAppRegReq;
+
+/**
+ * struct sptt_app_reg_req - PTT register request structure
+ * @radio: Radio ID
+ * @wmsg: ANI header
+ *
+ * payload structure received as nl data from PTT app/user space
+ */
+typedef struct sptt_app_reg_req {
+	int radio;
+	tAniHdr wmsg;
+} ptt_app_reg_req;
+
 typedef struct sAniNlAppRegRsp {
 	tAniHdr wniHdr;         /* Generic WNI msg header */
 	tAniNlAppRegReq regReq; /* The original request msg */