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/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index e895c13..dd097cf 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -10,8 +10,8 @@
 obj-$(CONFIG_EXYNOS5420)	+= sec_boot.o
 
 ifdef CONFIG_SPL_BUILD
-obj-$(CONFIG_EXYNOS5)	+= clock_init_exynos5.o
-obj-$(CONFIG_EXYNOS5)	+= dmc_common.o dmc_init_ddr3.o
+obj-$(CONFIG_ARCH_EXYNOS5)	+= clock_init_exynos5.o
+obj-$(CONFIG_ARCH_EXYNOS5)	+= dmc_common.o dmc_init_ddr3.o
 obj-$(CONFIG_EXYNOS4210)+= dmc_init_exynos4.o clock_init_exynos4.o
 obj-y	+= spl_boot.o tzpc.o
 obj-y	+= lowlevel_init.o