package/freeswitch: remove optional dependency to opencv3

OpenCV3 is unmaintained and will be removed from buildroot.

Select needed OpenCV4 modules in Config.in and adjust freeswitch.mk.

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/freeswitch/Config.in

@@ -11,9 +11,9 @@ config BR2_PACKAGE_FREESWITCH
 	select BR2_PACKAGE_JPEG
 	# src/mod/applications/mod_cv/mod_cv.cpp includes
 	# highgui.h, imgproc.hpp & objdetect.hpp
-	select BR2_PACKAGE_OPENCV3_LIB_HIGHGUI if BR2_PACKAGE_OPENCV3
-	select BR2_PACKAGE_OPENCV3_LIB_IMGPROC if BR2_PACKAGE_OPENCV3
-	select BR2_PACKAGE_OPENCV3_LIB_OBJDETECT if BR2_PACKAGE_OPENCV3
+	select BR2_PACKAGE_OPENCV4_LIB_HIGHGUI if BR2_PACKAGE_OPENCV4
+	select BR2_PACKAGE_OPENCV4_LIB_IMGPROC if BR2_PACKAGE_OPENCV4
+	select BR2_PACKAGE_OPENCV4_LIB_OBJDETECT if BR2_PACKAGE_OPENCV4
 	select BR2_PACKAGE_OPENSSL
 	select BR2_PACKAGE_PCRE
 	select BR2_PACKAGE_SOFIA_SIP

package/freeswitch/freeswitch.mk

@@ -278,12 +278,7 @@ FREESWITCH_DEPENDENCIES += libsoundtouch
 FREESWITCH_ENABLED_MODULES += applications/mod_soundtouch
 endif
 
-ifeq ($(BR2_PACKAGE_OPENCV3),y)
-FREESWITCH_DEPENDENCIES += opencv3
-FREESWITCH_ENABLED_MODULES += applications/mod_cv
-endif
-
-ifeq ($(BR2_PACKAGE_OPENCV4_LIB_HIGHGUI)$(BR2_PACKAGE_OPENCV4_LIB_IMGPROC)$(BR2_PACKAGE_OPENCV4_LIB_OBJDETECT),yyy)
+ifeq ($(BR2_PACKAGE_OPENCV4),y)
 FREESWITCH_DEPENDENCIES += opencv4
 FREESWITCH_ENABLED_MODULES += applications/mod_cv
 endif