soc: qcom: wcnss_ctrl: Stub wcnss_ctrl API

Stub the wcnss_ctrl API to allow compile testing wcnss function drivers.

Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

include/linux/soc/qcom/wcnss_ctrl.h

@@ -3,6 +3,19 @@
 
 #include <linux/soc/qcom/smd.h>
 
+#if IS_ENABLED(CONFIG_QCOM_WCNSS_CTRL)
+
 struct qcom_smd_channel *qcom_wcnss_open_channel(void *wcnss, const char *name, qcom_smd_cb_t cb);
 
+#else
+
+static inline struct qcom_smd_channel*
+qcom_wcnss_open_channel(void *wcnss, const char *name, qcom_smd_cb_t cb)
+{
+	WARN_ON(1);
+	return ERR_PTR(-ENXIO);
+}
+
+#endif
+
 #endif