Make auto-downsize on error optional

Add --no-downsize-on-error option to disable attempts to use a lower
definition on MediaCodec error.

PR #2947 <https://github.com/Genymobile/scrcpy/pull/2947>

app/src/scrcpy.c

@@ -364,6 +364,7 @@ scrcpy(struct scrcpy_options *options) {
         .force_adb_forward = options->force_adb_forward,
         .power_off_on_close = options->power_off_on_close,
         .clipboard_autosync = options->clipboard_autosync,
+        .downsize_on_error = options->downsize_on_error,
         .tcpip = options->tcpip,
         .tcpip_dst = options->tcpip_dst,
     };