wlan: Add qwlanfw_defs.h to resolve the compiler error

Compilation Error. Change 664372 (Promote request by stng) removes the
"qwlanfw_defs.h" in rel/2.0 API branch. This is causing compilation
error as no qwlanfw_defs.h is present on the host side

Change-Id: I35f0a91424ec11785bb8d6a7e93a747c9db44efa
CR-Fixed: 434878
diff --git a/riva/inc/wlan_qct_dev_defs.h b/riva/inc/wlan_qct_dev_defs.h
index 51a1263..7a183cd 100644
--- a/riva/inc/wlan_qct_dev_defs.h
+++ b/riva/inc/wlan_qct_dev_defs.h
@@ -369,4 +369,16 @@
 #define HWBD_TYPE_GENERIC                  0   /* generic BD format */
 #define HWBD_TYPE_FRAG                     1   /* fragmentation BD format*/
 
+/*---------------------------------------------------------------------- */
+/* HW Tx power                                                           */
+/*---------------------------------------------------------------------- */
+#ifdef WLAN_HAL_PRIMA
+   #define WLAN_SOC_PRIMA_MAX_TX_POWER 22
+   #define WLAN_SOC_PRIMA_MIN_TX_POWER 6
+#else
+   /* add more platforms here */
+   #define WLAN_SOC_PRIMA_MAX_TX_POWER 22
+   #define WLAN_SOC_PRIMA_MIN_TX_POWER 6
+#endif //#ifdef WCN_PRIMA
+
 #endif /* __WLAN_QCT_DEV_DEFS_H */