gstreamer1.0-plugins-bad: disable rsvg on x32

gstreamer1.0-plugins-bad: disable rsvg on x32

librsvg throws:

| error[E0080]: erroneous constant used
|    --> /home/alex/development/poky/build-x32/tmp/work/x86_64_x32-poky-linux-gnux32/librsvg/2.52.0-r0/librsvg-2.52.0/vendor/thin-slice/src/lib.rs:111:25
|     |
| 111 |         } else if len < TAG_LIMIT {
|     |

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>