global: Move remaining CONFIG_SYS_SDRAM_* to CFG_SYS_SDRAM_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM
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/drivers/pci/pci_sh7751.c b/drivers/pci/pci_sh7751.c
index d514c04..c1be56c 100644
--- a/drivers/pci/pci_sh7751.c
+++ b/drivers/pci/pci_sh7751.c
@@ -158,9 +158,9 @@
 
 	/* Set up target memory mappings (for external DMA access) */
 	/* Map both P0 and P2 range to Area 3 RAM for ease of use */
-	p4_out(CONFIG_SYS_SDRAM_SIZE - 0x100000, SH7751_PCILSR0);
-	p4_out(CONFIG_SYS_SDRAM_BASE & 0x1FF00000, SH7751_PCILAR0);
-	p4_out(CONFIG_SYS_SDRAM_BASE & 0xFFF00000, SH7751_PCICONF5);
+	p4_out(CFG_SYS_SDRAM_SIZE - 0x100000, SH7751_PCILSR0);
+	p4_out(CFG_SYS_SDRAM_BASE & 0x1FF00000, SH7751_PCILAR0);
+	p4_out(CFG_SYS_SDRAM_BASE & 0xFFF00000, SH7751_PCICONF5);
 
 	p4_out(0, SH7751_PCILSR1);
 	p4_out(0, SH7751_PCILAR1);