gpu: host1x: Support 40-bit addressing on Tegra186

The host1x and clients instantiated on Tegra186 support addressing 40
bits of memory.
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/gpu/host1x/dev.c

@@ -136,7 +136,7 @@ static const struct host1x_info host1x06_info = {
 	.nb_bases = 16,
 	.init = host1x06_init,
 	.sync_offset = 0x0,
-	.dma_mask = DMA_BIT_MASK(34),
+	.dma_mask = DMA_BIT_MASK(40),
 	.has_hypervisor = true,
 	.num_sid_entries = ARRAY_SIZE(tegra186_sid_table),
 	.sid_table = tegra186_sid_table,