global: Move remaining CONFIG_SYS_NAND_* to CFG_SYS_NAND_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_NAND
namespace do not easily transition to Kconfig. In many cases they likely
should come from the device tree instead. Move these out of CONFIG
namespace and in to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/board/freescale/t102xrdb/law.c b/board/freescale/t102xrdb/law.c
index 04a4239..850ece0 100644
--- a/board/freescale/t102xrdb/law.c
+++ b/board/freescale/t102xrdb/law.c
@@ -23,8 +23,8 @@
 #ifdef CONFIG_SYS_DCSRBAR_PHYS
 	SET_LAW(CONFIG_SYS_DCSRBAR_PHYS, LAW_SIZE_4M, LAW_TRGT_IF_DCSR),
 #endif
-#ifdef CONFIG_SYS_NAND_BASE_PHYS
-	SET_LAW(CONFIG_SYS_NAND_BASE_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_IFC),
+#ifdef CFG_SYS_NAND_BASE_PHYS
+	SET_LAW(CFG_SYS_NAND_BASE_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_IFC),
 #endif
 };