[PATCH] clk: samsung: exynos5433: use clock_ignore_unused flag for SPI3 related clocks

[Andi Shyti]

Hi Tomasz,

> > The SPI 3 bus uses two clocks, a bus clock and an input clock.
> > Do not disable the clocks when unused in order to allow access to
> > the SPI 3 device.
> 
> If unused, why would access to SPI 3 device needed?

because next I will submit a small driver which uses the SPI3.
Actually in the exynos5433 boards all the SPI are used but not all
the drivers are ported to mainline.

Thanks,
Andi