rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/apollon/apollon.c b/board/apollon/apollon.c
index 8efa703..8964eba 100644
--- a/board/apollon/apollon.c
+++ b/board/apollon/apollon.c
@@ -245,7 +245,7 @@
 	__raw_writel(v, CM_CLKSEL2_CORE);
 	__raw_writel(0x1, CM_CLKSEL_WKUP);
 
-#ifdef CFG_NS16550
+#ifdef CONFIG_SYS_NS16550
 	/* Enable UART1 clock */
 	func_clks |= BIT21;
 	if_clks |= BIT21;