spl: dm: Kconfig: SPL_CLK depends on SPL_DM

SPL_CLK should also depend on SPL_DM (and not just on CLK).
Add the additional dependency.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

drivers/clk/Kconfig

@@ -12,7 +12,7 @@ config CLK
 
 config SPL_CLK
 	bool "Enable clock support in SPL"
-	depends on CLK
+	depends on CLK && SPL_DM
 	help
 	  The clock subsystem adds a small amount of overhead to the image.
 	  If this is acceptable and you have a need to use clock drivers in