post: Move CONFIG_SYS_POST to CFG_SYS_POST

Migrate the rest of the CONFIG_SYS_POST macros over to CFG_SYS_POST
namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index 7240d76..77d3f37 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -526,7 +526,7 @@
 		ops->getconfig += gd->reloc_off;
 	if (ops->setconfig)
 		ops->setconfig += gd->reloc_off;
-#if CFG_POST & CONFIG_SYS_POST_UART
+#if CFG_POST & CFG_SYS_POST_UART
 	if (ops->loop)
 		ops->loop += gd->reloc_off;
 #endif
diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c
index 369a8e3..9a380d7 100644
--- a/drivers/serial/serial.c
+++ b/drivers/serial/serial.c
@@ -458,7 +458,7 @@
 		dev->putc(*s++);
 }
 
-#if CFG_POST & CONFIG_SYS_POST_UART
+#if CFG_POST & CFG_SYS_POST_UART
 static const int bauds[] = CFG_SYS_BAUDRATE_TABLE;
 
 /**