crypto: Move SYS_FSL_SEC_COMPAT into driver Kconfig

Instead of define CONFIG_SYS_FSL_SEC_COMPAT in header files for PowerPC
and ARM SoCs, move it to Kconfig under the driver.

Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 38080c0..5080a96 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -464,10 +464,14 @@
 config ARCH_MX7
 	bool "Freescale MX7"
 	select CPU_V7
+	select SYS_FSL_HAS_SEC if SECURE_BOOT
+	select SYS_FSL_SEC_COMPAT_4
 
 config ARCH_MX6
 	bool "Freescale MX6"
 	select CPU_V7
+	select SYS_FSL_HAS_SEC if SECURE_BOOT
+	select SYS_FSL_SEC_COMPAT_4
 
 config ARCH_MX5
 	bool "Freescale MX5"