wlan: Don't create con_mode module parameter sys entry

Dynamic con_mode change is not supported if WLAN driver is dynamically
loaded. Hence don't create con_mode module parameter to make sure user
can load the driver with specific con_mode only while inserting driver
but not after the driver is loaded.

Change-Id: I49e5b071297cb77af2c44fab40a602ebc814cb9c
CRs-Fixed: 2257123
diff --git a/CORE/HDD/src/wlan_hdd_main.c b/CORE/HDD/src/wlan_hdd_main.c
index 0a5e405..565ff3d 100644
--- a/CORE/HDD/src/wlan_hdd_main.c
+++ b/CORE/HDD/src/wlan_hdd_main.c
@@ -18439,8 +18439,12 @@
 	.get = param_get_string,
 };
 
+#ifdef MODULE
+module_param(con_mode, int, 0);
+#else
 module_param_cb(con_mode, &con_mode_ops, &con_mode,
                     S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+#endif
 
 module_param_cb(fwpath, &fwpath_ops, &fwpath,
                     S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);