Add gnss 5311 support.

Change-Id: I436cbc7eabe8e6448d318b6eee81f49dddcce756
diff --git a/mbtk/mbtk_gnssd/gnss_asr5311.h b/mbtk/mbtk_gnssd/gnss_asr5311.h
new file mode 100755
index 0000000..78a676c
--- /dev/null
+++ b/mbtk/mbtk_gnssd/gnss_asr5311.h
@@ -0,0 +1,29 @@
+/*
+* gnss_asr5311.h
+*
+* ASR 5311 GNSS support header.
+*
+* Author : lb
+* Date   : 2024/6/19 15:50:15
+*/
+#ifndef _GNSS_ASR5311_H
+#define _GNSS_ASR5311_H
+#include "gnss_info.h"
+#include "mbtk_type.h"
+
+
+int gnss_5311_dev_open();
+
+int gnss_5311_dev_close();
+
+int gnss_5311_open(const char *dev);
+
+int gnss_5311_close(int fd);
+
+int gnss_5311_fw_dl();
+
+void gnss_5311_set_cb(const void *data, int data_len);
+
+gnss_err_enum gnss_5311_set(int fd, const char *cmd, void *cmd_rsp, int cmd_rsp_len);
+
+#endif /* _GNSS_ASR5311_H */