rng: Add Qualcomm MSM PRNG driver

Add support for the hardware pseudo random number generator found in Qualcomm SoC-s.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Cc: Luka Perkov <luka.perkov@sartura.hr>
diff --git a/drivers/rng/Kconfig b/drivers/rng/Kconfig
index e4b22d7..11001c8 100644
--- a/drivers/rng/Kconfig
+++ b/drivers/rng/Kconfig
@@ -24,6 +24,13 @@
 	  Enable random number generator for sandbox. This is an
 	  emulation of a rng device.
 
+config RNG_MSM
+	bool "Qualcomm SoCs Random Number Generator support"
+	depends on DM_RNG
+	help
+	  This driver provides support for the Random Number
+	  Generator hardware found on Qualcomm SoCs.
+
 config RNG_STM32MP1
 	bool "Enable random number generator for STM32MP1"
 	depends on ARCH_STM32MP