clk: tegra: Mark TEGRA210_CLK_DBGAPB as always on

This is needed to make the JTAG debugging interface work.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
[treding@nvidia.com: add TODO comment]
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/clk/tegra/clk-tegra210.c

@@ -2985,6 +2985,8 @@ static struct tegra_clk_init_table init_table[] __initdata = {
 	{ TEGRA210_CLK_EMC, TEGRA210_CLK_CLK_MAX, 0, 1 },
 	{ TEGRA210_CLK_MSELECT, TEGRA210_CLK_CLK_MAX, 0, 1 },
 	{ TEGRA210_CLK_CSITE, TEGRA210_CLK_CLK_MAX, 0, 1 },
+	/* TODO find a way to enable this on-demand */
+	{ TEGRA210_CLK_DBGAPB, TEGRA210_CLK_CLK_MAX, 0, 1 },
 	{ TEGRA210_CLK_TSENSOR, TEGRA210_CLK_CLK_M, 400000, 0 },
 	{ TEGRA210_CLK_I2C1, TEGRA210_CLK_PLL_P, 0, 0 },
 	{ TEGRA210_CLK_I2C2, TEGRA210_CLK_PLL_P, 0, 0 },