FFmpeg: reduce the number of frameworks we create

to the same libraries we build e.g. on macOS. Also, clean up the
script a bit removing a duplicate configure option.

Pick-to: 6.9 6.8
Task-number: QTBUG-133502
Change-Id: If06aad102783bc3025155d3427aa68d87ad4d179
Reviewed-by: Artem Dyomin <artem.dyomin@qt.io>

coin/provisioning/common/unix/install-ffmpeg-ios.sh

@@ -46,7 +46,6 @@ build_ffmpeg_ios() {
     --nm="$(xcrun --sdk ${target_sdk} --find nm)" \
     --target-os=darwin \
     --extra-ldflags="$minos" \
-    --enable-cross-compile \
     --enable-shared \
     --disable-static \
     --install-name-dir='@rpath' \
@@ -172,7 +171,7 @@ create_xcframework() {
 build_ffmpeg_ios "arm64-simulator"
 build_ffmpeg_ios "arm64"
 
-ffmpeg_libs="libavcodec libavdevice libavfilter libavformat libavutil libswresample libswscale"
+ffmpeg_libs="libavcodec libavformat libavutil libswresample libswscale"
 
 for name in $ffmpeg_libs; do
     create_framework $name "arm64"