freedreno/ir3: fix missing recursion into block condition

Fixes a problem seen with dEQP-GLES31.functional.ssbo.layout.single_basic_array.shared.row_major_mat4

Signed-off-by: Rob Clark <robdclark@gmail.com>

src/gallium/drivers/freedreno/ir3/ir3_group.c

@@ -263,6 +263,10 @@ find_neighbors(struct ir3 *ir)
 			struct ir3_instruction *instr = block->keeps[i];
 			instr_find_neighbors(instr);
 		}
+
+		/* We also need to account for if-condition: */
+		if (block->condition)
+			instr_find_neighbors(block->condition);
 	}
 }