Convert CONFIG_SYS_FSL_MAX_NUM_OF_SEC to Kconfig

This converts the following to Kconfig:
   CONFIG_SYS_FSL_MAX_NUM_OF_SEC

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/crypto/fsl/Kconfig b/drivers/crypto/fsl/Kconfig
index e03fcdd..b04c701 100644
--- a/drivers/crypto/fsl/Kconfig
+++ b/drivers/crypto/fsl/Kconfig
@@ -10,6 +10,11 @@
 	  Module (CAAM), also known as the SEC version 4 (SEC4). The driver uses
 	  Job Ring as interface to communicate with CAAM.
 
+config SYS_FSL_MAX_NUM_OF_SEC
+	int "Number of job rings in the CAAM"
+	depends on FSL_CAAM
+	default 1
+
 config CAAM_64BIT
 	bool
 	default y if PHYS_64BIT && !ARCH_IMX8M && !ARCH_IMX8