qcacmn: Compile qdf as part of single module

Adds support to include qdf as part of single module.
This is needed for WHUNT testing where we need to have
single module, one inserted as AP and one as STA.

Change-Id: I8c2aef4cc18391e92f537e2ce791bd5b58b6e764

qdf/linux/src/qdf_module.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012-2018, 2020 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -42,8 +42,11 @@ MODULE_LICENSE("Dual BSD/GPL");
  *
  * Return: int
  */
-static int __init
-qdf_mod_init(void)
+#ifndef QCA_SINGLE_WIFI_3_0
+static int __init qdf_mod_init(void)
+#else
+int qdf_mod_init(void)
+#endif
 {
 	qdf_shared_print_ctrl_init();
 	qdf_debugfs_init();
@@ -56,15 +59,20 @@ qdf_mod_init(void)
 
 	return 0;
 }
-module_init(qdf_mod_init);
 
+#ifndef QCA_SINGLE_WIFI_3_0
+module_init(qdf_mod_init);
+#endif
 /**
  * qdf_mod_exit() - module remove
  *
  * Return: int
  */
-static void __exit
-qdf_mod_exit(void)
+#ifndef QCA_SINGLE_WIFI_3_0
+static void __exit qdf_mod_exit(void)
+#else
+void qdf_mod_exit(void)
+#endif
 {
 	qdf_event_list_destroy();
 	qdf_nbuf_mod_exit();
@@ -75,5 +83,7 @@ qdf_mod_exit(void)
 	qdf_debugfs_exit();
 	qdf_shared_print_ctrl_cleanup();
 }
-module_exit(qdf_mod_exit);
 
+#ifndef QCA_SINGLE_WIFI_3_0
+module_exit(qdf_mod_exit);
+#endif