clk: exynos5433: remove CLK_IGNORE_UNUSED flag from SPI clocks

Because the Exynos5433 SPI driver supports the ioclk handling and
the following patch:

  http://marc.info/?l=linux-kernel&m=146787645626318&w=2



fixes a synchronus abort issue, none of the SPI clocks require
any critical handling: remove, then, the CLK_IGNORE_UNUSED flag
for the SPI related clocks.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1468317736-18841-8-git-send-email-andi.shyti@samsung.com