Fix an issue that ffmpeg patch files could not be applied

[kusaanko]

Description

ffmpeg file "configure" has been changed. https://github.com/FFmpeg/FFmpeg/commit/f32f56468c6caa03f4ebbf6cf58b2bb7bc775216 So there is an error when I run git apply ../SVT-HEVC/ffmpeg_plugin/master-0001-lavc-svt_hevc-add-libsvt-hevc-encoder-wrapper.patch:

error: patch failed: configure:3315
error: configure: patch does not apply

This change fixes this error.

Author(s)

Kusaanko

Merge method

• [x] Allow the maintainer to squash and merge when PR is ready to create a 1-commit to the master branch. The maintainer will be able to fix typos / combine commit messages to create a more readable 1-commit message or use whatever is stated in the 'Description' section
• [x] I will clean up my commits and the maintainer shall use 'rebase and merge' to the master branch

[tianjunwork]

Hi @kusaanko , thank you for contributing the fix. Yes, git am/apply failed. In this case, patch still works.