qcacld-3.0: Fix compiling issue of __DP_RX_THREAD__H

error: '__DP_RX_THREAD__H' is used as a header guard here,
followed by #define of a different macro [-Werror,
-Wheader-guard]

Change-Id: I21beca14c8ea98a9a6c4a4acd5f3c7428fd56e01
CRs-Fixed: 2315965

core/dp/txrx3.0/dp_rx_thread.h

@@ -16,7 +16,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-#if !defined(__DP_RX_THREAD__H)
+#if !defined(__DP_RX_THREAD_H)
 #define __DP_RX_THREAD_H
 
 #include <qdf_lock.h>