Declare the SCKC (Slow Clock Configuration) block and its clks.
Make use of the clk32k clk instead of slow_osc where appropriate.
Signed-off-by: NBoris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>