coin, macOS, FFmpeg: Fix incorrect popd in install-ffmpeg-android.sh

popd was placed incorrectly and caused the script to be unable to find
the fix_ffmpeg_dependencies.sh file.

Change-Id: I7922a698e90d1b3899ecc7b2240a260ea706707f
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit 8f47837a59)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

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

@@ -95,6 +95,8 @@ build_ffmpeg_android() {
 
   sudo make install -j4
 
+  popd
+
   rm -f "${openssl_libs}/libcrypto.so"
   rm -f "${openssl_libs}/libssl.so"
 
@@ -102,8 +104,6 @@ build_ffmpeg_android() {
       fix_dependencies="${BASH_SOURCE%/*}/../shared/fix_ffmpeg_dependencies.sh"
       sudo "${fix_dependencies}" "${target_dir}" "${libs_prefix}" "no"
   fi
-
-  popd
 }
 
 if  [ "$os" == "android-x86" ]; then