[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/sound/soc/fsl/imx-audmux.h b/src/kernel/linux/v4.19/sound/soc/fsl/imx-audmux.h
new file mode 100644
index 0000000..f75b4d3
--- /dev/null
+++ b/src/kernel/linux/v4.19/sound/soc/fsl/imx-audmux.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __IMX_AUDMUX_H
+#define __IMX_AUDMUX_H
+
+#include <dt-bindings/sound/fsl-imx-audmux.h>
+
+int imx_audmux_v1_configure_port(unsigned int port, unsigned int pcr);
+
+int imx_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
+		unsigned int pdcr);
+
+#endif /* __IMX_AUDMUX_H */