radv: bump the maximum number of arguments to 64

Bumping to 64 should be safe enough.

Fixes some crashes with new CTS:
dEQP-VK.binding_model.descriptorset_random.*

CC: 18.2 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

src/amd/vulkan/radv_nir_to_llvm.c

@@ -416,7 +416,7 @@ get_tcs_out_current_patch_data_offset(struct radv_shader_context *ctx)
 			     patch0_patch_data_offset);
 }
 
-#define MAX_ARGS 23
+#define MAX_ARGS 64
 struct arg_info {
 	LLVMTypeRef types[MAX_ARGS];
 	LLVMValueRef *assign[MAX_ARGS];