lib: Make 6 async reporting funcs private

As those aren't used in any driver.

doc/libfprint-sections.txt

@@ -235,17 +235,11 @@ fp_img_driver
 <SECTION>
 <INCLUDE>fpi-async.h</INCLUDE>
 <FILE>fpi-async</FILE>
-fpi_drvcb_capture_started
-fpi_drvcb_capture_stopped
 fpi_drvcb_close_complete
 fpi_drvcb_enroll_stage_completed
 fpi_drvcb_enroll_started
 fpi_drvcb_enroll_stopped
-fpi_drvcb_identify_started
-fpi_drvcb_identify_stopped
 fpi_drvcb_open_complete
-fpi_drvcb_report_capture_result
-fpi_drvcb_report_identify_result
 fpi_drvcb_report_verify_result
 fpi_drvcb_verify_started
 fpi_drvcb_verify_stopped

libfprint/fp_internal.h

@@ -304,6 +304,17 @@ void fpi_timeout_cancel_all_for_dev(struct fp_dev *dev);
 void fpi_poll_init(void);
 void fpi_poll_exit(void);
 
+/* Defined in fpi-async.c */
+void fpi_drvcb_capture_started(struct fp_dev *dev, int status);
+void fpi_drvcb_report_capture_result(struct fp_dev *dev, int result,
+	struct fp_img *img);
+void fpi_drvcb_capture_stopped(struct fp_dev *dev);
+
+void fpi_drvcb_identify_started(struct fp_dev *dev, int status);
+void fpi_drvcb_report_identify_result(struct fp_dev *dev, int result,
+	size_t match_offset, struct fp_img *img);
+void fpi_drvcb_identify_stopped(struct fp_dev *dev);
+
 #include "drivers_definitions.h"
 
 #endif

libfprint/fpi-async.h

@@ -36,14 +36,4 @@ void fpi_drvcb_report_verify_result(struct fp_dev *dev, int result,
 	struct fp_img *img);
 void fpi_drvcb_verify_stopped(struct fp_dev *dev);
 
-void fpi_drvcb_identify_started(struct fp_dev *dev, int status);
-void fpi_drvcb_report_identify_result(struct fp_dev *dev, int result,
-	size_t match_offset, struct fp_img *img);
-void fpi_drvcb_identify_stopped(struct fp_dev *dev);
-
-void fpi_drvcb_capture_started(struct fp_dev *dev, int status);
-void fpi_drvcb_report_capture_result(struct fp_dev *dev, int result,
-	struct fp_img *img);
-void fpi_drvcb_capture_stopped(struct fp_dev *dev);
-
 #endif