arm: SC594-SOM-EZLITE initial support

Adds support for Analog Devices' SC594-SOM-EZLITE board. Includes:
- Board specific configs in mach-sc5xx/Kconfig
- Board-specific Kconfig and environment in board/adi/

Signed-off-by: Oliver Gaskell <Oliver.Gaskell@analog.com>
diff --git a/arch/arm/mach-sc5xx/Kconfig b/arch/arm/mach-sc5xx/Kconfig
index e93f214..b57c21c 100644
--- a/arch/arm/mach-sc5xx/Kconfig
+++ b/arch/arm/mach-sc5xx/Kconfig
@@ -54,6 +54,11 @@
 choice
 	prompt "SC59x 32-bit board select"
 
+config TARGET_SC594_SOM_EZLITE
+	bool
+	prompt "SC594-SOM with SOMCRR-EZLITE"
+	select ADI_CARRIER_SOMCRR_EZLITE
+
 config TARGET_SC594_SOM_EZKIT
 	bool
 	prompt "SC594-SOM with SOMCRR-EZKIT"
@@ -524,5 +529,6 @@
 source "board/adi/sc598-som-ezkit/Kconfig"
 source "board/adi/sc598-som-ezlite/Kconfig"
 source "board/adi/sc594-som-ezkit/Kconfig"
+source "board/adi/sc594-som-ezlite/Kconfig"
 
 endif