clk: uniphier: disable SPL_CLK

The last clock consumer in SPL, SD/eMMC driver, gave up using the
clock driver.  The clock driver is only used in U-Boot proper.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

drivers/clk/uniphier/Kconfig

@@ -2,7 +2,6 @@ config CLK_UNIPHIER
 	def_bool y
 	depends on ARCH_UNIPHIER
 	select CLK
-	select SPL_CLK if SPL
 	help
 	  Support for clock controllers on UniPhier SoCs.
 	  Say Y if you want to control clocks provided by System Control