clk: s5pv210: add missing call to samsung_clk_of_add_provider()

Commit d5e136a21b2028fb1f45143ea7112d5869bfc6c7 ("clk: samsung: Register
clk provider only after registering its all clocks", merged to v3.17-rc1)
modified a way that driver registers registers to core framework. This
change has not been applied to s5pv210 clocks driver, which has been
merged in parallel to that commit. This patch adds a missing call to
samsung_clk_of_add_provider(), so the driver is operational again.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: stable@vger.kernel.org  # v3.17+
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>

drivers/clk/samsung/clk-s5pv210.c

@@ -826,6 +826,8 @@ static void __init __s5pv210_clk_init(struct device_node *np,
 
 	s5pv210_clk_sleep_init();
 
+	samsung_clk_of_add_provider(np, ctx);
+
 	pr_info("%s clocks: mout_apll = %ld, mout_mpll = %ld\n"
 		"\tmout_epll = %ld, mout_vpll = %ld\n",
 		is_s5p6442 ? "S5P6442" : "S5PV210",