Revert "drivers: entropy: mcux_rnga: add "depends on SYS_CLOCK_EXISTS""

This reverts commit 2131b8b.

Signed-off-by: Valerio Setti <[email protected]>

Author: valeriosetti

drivers/entropy/Kconfig.mcux

@@ -7,7 +7,6 @@ config ENTROPY_MCUX_RNGA
 	bool "MCUX RNGA driver"
 	default y
 	depends on DT_HAS_NXP_KINETIS_RNGA_ENABLED
-	depends on SYS_CLOCK_EXISTS
 	select ENTROPY_HAS_DRIVER
 	help
 	  This option enables the random number generator accelerator (RNGA)