obs-studio FTBFS on loong64

[Bo YU <tsu.yubo@gmail.com>]

Hi,

Now luajit[0] can be built on loong64, so the obs-studio[1] have a
chance to try build on loong64, but it failed now:

```
...
/usr/include/simde/x86/sse2.h: At top level:
/usr/include/simde/x86/sse2.h:260:24: error: conflicting types for
‘__m128i’; have ‘simde__m128i’
  260 |   typedef simde__m128i __m128i;
      |                        ^~~~~~~
In file included from /usr/include/simde/simde-features.h:766,
                 from /usr/include/simde/simde-common.h:45,
                 from /usr/include/simde/x86/mmx.h:30,
                 from /usr/include/simde/x86/sse.h:33:

```
see https://buildd.debian.org/status/fetch.php?pkg=obs-studio&arch=loong64&ver=30.2.3%2Bdfsg-2&stamp=1732241930&raw=0

The obs-studio is a key package for obs-* packages so I am reporting
this to here to reminder loong64 porter.

Could you have a look at this?

BR,
Bo

[0]: https://buildd.debian.org/status/package.php?p=luajit&suite=sid
[1]: https://buildd.debian.org/status/package.php?p=obs-studio&suite=sid