arm: samsung: Migrate a number of symbols to Kconfig

- In a number of cases, use CONFIG_ARCH_EXYNOS[45] rather than
  CONFIG_EXYNOS[45]
- In other cases, test for CONFIG_ARCH_EXYNOS or CONFIG_ARCH_S5PC1XX
- Migrate specific SoC CONFIG values to Kconfig
- Use CONFIG_TARGET_x rather than CONFIG_x
- Migrate other CONFIG_EXYNOS_x symbols to Kconfig
- Reference CONFIG_EXYNOS_RELOCATE_CODE_BASE directly as EXYNOS_RELOCATE_CODE_BASE
- Rename CONFIG_S5P_PA_SYSRAM to CONFIG_SMP_PEN_ADDR to match the rest
  of U-Boot usage.

Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/arndale.h b/include/configs/arndale.h
index 5ebba0c..7a24476 100644
--- a/include/configs/arndale.h
+++ b/include/configs/arndale.h
@@ -14,13 +14,9 @@
 #include "exynos5250-common.h"
 #include <configs/exynos5-common.h>
 
-/* MMC SPL */
-#define CONFIG_EXYNOS_SPL
-
 /* Miscellaneous configurable options */
 
-#define CONFIG_S5P_PA_SYSRAM	0x02020000
-#define CONFIG_SMP_PEN_ADDR	CONFIG_S5P_PA_SYSRAM
+#define CONFIG_SMP_PEN_ADDR	0x02020000
 
 /* The PERIPHBASE in the CBAR register is wrong on the Arndale, so override it */
 #define CONFIG_ARM_GIC_BASE_ADDRESS	0x10480000