videotoolbox: set correct minimal version constants for iOS and tvOS

modules/codec/Makefile.am

@@ -321,6 +321,12 @@ libvideotoolbox_plugin_la_SOURCES = video_chroma/copy.c video_chroma/copy.h code
 if HAVE_OSX
 libvideotoolbox_plugin_la_OBJCFLAGS = $(AM_CFLAGS) -mmacosx-version-min=10.8
 endif
+if HAVE_IOS
+libvideotoolbox_plugin_la_OBJCFLAGS = $(AM_CFLAGS) -miphoneos-version-min=8.0
+endif
+if HAVE_TVOS
+libvideotoolbox_plugin_la_OBJCFLAGS = $(AM_CFLAGS) -mtvos-version-min=10.2
+endif
 libvideotoolbox_plugin_la_LDFLAGS = $(AM_LDFLAGS) -rpath '$(codecdir)' -Wl,-framework,Foundation -Wl,-framework,VideoToolbox -Wl,-framework,CoreMedia -Wl,-framework,CoreVideo
 EXTRA_LTLIBRARIES += libvideotoolbox_plugin.la
 codec_LTLIBRARIES += $(LTLIBvideotoolbox)