qcacmn: Add CONFIG_CNSS_OUT_OF_TREE flag

Use CONFIG_CNSS_OUT_OF_TREE to control if CNSS family drivers are
built from in-kernel-tree source or out-of-kernel-tree source since
the exposed header files will be in different paths. This is also
for backward compatibility.

Change-Id: I698492f175ea140e6854c372f366a63f36de24c9
CRs-fixed: 3022556

utils/logging/src/wlan_logging_sock_svc.c

@@ -38,8 +38,12 @@
 #include <qdf_str.h>
 
 #ifdef CNSS_GENL
+#ifdef CONFIG_CNSS_OUT_OF_TREE
+#include "cnss_nl.h"
+#else
 #include <net/cnss_nl.h>
 #endif
+#endif
 
 #if defined(FEATURE_FW_LOG_PARSING) || defined(FEATURE_WLAN_DIAG_SUPPORT) || \
 	defined(FEATURE_PKTLOG)