[NVPTX] A small fix for MMA and sparse MMA tests. PR150950.

Author: kvederni

llvm/test/CodeGen/NVPTX/wmma.py

@@ -96,9 +96,9 @@ def __init__(self, geom, frag, ptx_elt_type, is_mma_sparse=False):
             "m16n8k32:b:bf16": 4,
             "m16n8k32:b:f16": 4,
             "m16n8k32:c:f16": 2,
-            "m16n8k32:c:f32": 4 if is_mma_sparse else 8,
+            "m16n8k32:c:f32": 4,
             "m16n8k32:d:f16": 2,
-            "m16n8k32:d:f32": 4 if is_mma_sparse else 8,
+            "m16n8k32:d:f32": 4,
             "m16n8k16:a:tf32": 4,
             "m16n8k16:b:tf32": 4,
             "m16n8k16:c:tf32": 4,