global: Move remaining CONFIG_SYS_NS16550_* to CFG_SYS_NS16550_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_NS16550
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/eets/pdu001/mux.c b/board/eets/pdu001/mux.c
index f0f9e26..886fef6 100644
--- a/board/eets/pdu001/mux.c
+++ b/board/eets/pdu001/mux.c
@@ -92,22 +92,22 @@
 void enable_uart_pin_mux(u32 addr)
 {
 	switch (addr) {
-	case CONFIG_SYS_NS16550_COM1:
+	case CFG_SYS_NS16550_COM1:
 		enable_uart0_pin_mux();
 		break;
-	case CONFIG_SYS_NS16550_COM2:
+	case CFG_SYS_NS16550_COM2:
 		enable_uart1_pin_mux();
 		break;
-	case CONFIG_SYS_NS16550_COM3:
+	case CFG_SYS_NS16550_COM3:
 		enable_uart2_pin_mux();
 		break;
-	case CONFIG_SYS_NS16550_COM4:
+	case CFG_SYS_NS16550_COM4:
 		enable_uart3_pin_mux();
 		break;
-	case CONFIG_SYS_NS16550_COM5:
+	case CFG_SYS_NS16550_COM5:
 		enable_uart4_pin_mux();
 		break;
-	case CONFIG_SYS_NS16550_COM6:
+	case CFG_SYS_NS16550_COM6:
 		enable_uart5_pin_mux();
 		break;
 	}