qcacmn: Remove HK header dependencies for ipq6018 compilation

Add target specific HW header for ipq6018 compilation.
Remove the 8074 header dependencies for 6018 compilation.

Change-Id: I8e45e3e039a4596c6722538405dcd381918fa6b1

htc/htc.c

@@ -45,7 +45,8 @@ ATH_DEBUG_INSTANTIATE_MODULE_VAR(htc,
 
 #endif
 
-#if (defined(CONFIG_MCL) || (QCA_WIFI_QCA8074))
+#if (defined(CONFIG_MCL) || defined(QCA_WIFI_QCA8074) || \
+	defined(QCA_WIFI_QCA6018))
 static const uint32_t svc_id[] = {WMI_CONTROL_SVC, WMI_CONTROL_SVC_WMAC1,
 						WMI_CONTROL_SVC_WMAC2};
 #else