clk: samsung: dt-bindings: Add ADC clock ID to Exynos5410

Add ID for TSADC clock to Exynos5410.  Choose the same value of ID as in
Exynos5420 to make it simpler/compatible in future (although clock
driver code is not shared).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>