agx: Fix extraneous bits with b2b32
What does this MR do and why?
agx: Fix extraneous bits with b2b32
From expanding mov_imm to take a 64-bit immediate. this worked by accident before. Fixes brief regression in dEQP-GLES31.functional.compute.shared_var.basic_type.bvec3.
Fixes: dbd98aa2 ("agx: Fix 64-bit immediate moves") Signed-off-by: Alyssa Rosenzweig alyssa@rosenzweig.io