crypto/fsl: Differentiate between CAAM and DCP in Kconfig entry

Differentiate between "Enable Random Number Generator support" and
"Enable Random Number Generator support" in Kconfig entry, mark the
first as CAAM and the second as DCP, otherwise users cannot easily
decide which of the options is which and enable the correct one.

Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/drivers/crypto/fsl/Kconfig b/drivers/crypto/fsl/Kconfig
index 9f58731..9ed5663 100644
--- a/drivers/crypto/fsl/Kconfig
+++ b/drivers/crypto/fsl/Kconfig
@@ -69,7 +69,7 @@
 	  driver is used.
 
 config FSL_CAAM_RNG
-	bool "Enable Random Number Generator support"
+	bool "Enable CAAM Random Number Generator support"
 	depends on DM_RNG
 	default y
 	help
@@ -88,7 +88,7 @@
 endif
 
 config FSL_DCP_RNG
-	bool "Enable Random Number Generator support"
+	bool "Enable DCP Random Number Generator support"
 	depends on DM_RNG
 	help
 	  Enable support for the hardware based random number generator