pan/bi: Account for bool32 ld_ubo reads

Fixes crash in sway.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <!7206>
43 jobs for !7206 with bifrost-native-reload in 9 minutes and 9 seconds (queued for 6 seconds)
merge request