boards: qemu_cortex_r5: Remove ignored tags for working tests.

This commit removes any ignored testing tags for working tests.

In the future, this ignored testing tag list will be further reduced
as critical bugs for the qemu_cortex_r5 platform are addressed
(see #20217).

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
1 file changed