Currently this provisioning script builds for arm64 architecture
when on iOS simulator. Qt ships x86_64 binaries for iOS simulator, and
we should build FFmpeg similarly.
This patch introduces support for x86_64-simulator in the iOS FFmpeg
provisioning script and uses it in place of arm64-simulator.
Pick-to: 6.8
Task-number: QTQAINFRA-7034
Change-Id: Ie93cffba51924cd1d78651d20dec211817cb0cef
Reviewed-by: Artem Dyomin <artem.dyomin@qt.io>
(cherry picked from commit aa613ed85d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>