community/qemu: ui-{gtk,sdl}: depend on qemu-ui-opengl

Fix error when trying to start these UIs:
	qemu-system-x86_64: Display 'sdl' is not available.
7 jobs for !15875 with qemu-fix-depend in 1 minute and 12 seconds
detached
Status Job ID Name Coverage
  Lint
passed #273827
docker-alpine x86_64
lint

00:00:18

 
  Build
passed #273832
docker-alpine ci-build aarch64
build-aarch64

00:00:29

passed #273833
docker-alpine ci-build armv7
build-armv7

00:00:33

passed #273831
docker-alpine ci-build ppc64le
build-ppc64le

00:00:47

passed #273830
docker-alpine ci-build s390x
build-s390x

00:00:52

passed #273829
docker-alpine ci-build x86
build-x86

00:00:18

passed #273828
docker-alpine ci-build x86_64
build-x86_64

00:00:24