Missing support for UYVY pixel format

[tpikonen]

qTox version: v1.16.3-237-gaa83edf7

Cameras with UYVY pixel format (some old iSight webcams, for example) do not work because the pixel format is not present in the V4L2 camera code. The fix is this trivial patch:

--- a/src/platform/camera/v4l2.cpp
+++ b/src/platform/camera/v4l2.cpp
@@ -53,6 +53,7 @@ static std::map<uint32_t, QString> createPixFmtToName()
     m[V4L2_PIX_FMT_H264] = QString("h264");
     m[V4L2_PIX_FMT_MJPEG] = QString("mjpeg");
     m[V4L2_PIX_FMT_YUYV] = QString("yuyv422");
+    m[V4L2_PIX_FMT_UYVY] = QString("uyvy422");
     return m;
 }
 const std::map<uint32_t, QString> pixFmtToName = createPixFmtToName();