modules: adds HAS_MCUX_RNG

New RNG module used by LPC family devices as random number generator.

Signed-off-by: Andrei Gansari <andrei.gansari@nxp.com>
diff --git a/modules/Kconfig.mcux b/modules/Kconfig.mcux
index a948430..801fff5 100644
--- a/modules/Kconfig.mcux
+++ b/modules/Kconfig.mcux
@@ -104,6 +104,12 @@
 	help
 	  Set if the general purpose timer (GPT) module is present in the SoC.
 
+config HAS_MCUX_RNG
+	bool
+	help
+	  Set if the LPC specific random number generator (RNG) module is
+	  present in the SoC.
+
 config HAS_MCUX_RNGA
 	bool
 	help