global: Migrate CONFIG_ETHBASE to CFG

Perform a simple rename of CONFIG_ETHBASE to CFG_ETHBASE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/cadence/xtfpga/xtfpga.c b/board/cadence/xtfpga/xtfpga.c
index f38f556..8e4081b 100644
--- a/board/cadence/xtfpga/xtfpga.c
+++ b/board/cadence/xtfpga/xtfpga.c
@@ -89,7 +89,7 @@
 	char *s = env_get("ethaddr");
 	if (s == 0) {
 		unsigned int x;
-		char s[] = __stringify(CONFIG_ETHBASE);
+		char s[] = __stringify(CFG_ETHBASE);
 		x = (*(volatile u32 *)CFG_SYS_FPGAREG_DIPSW)
 			& FPGAREG_MAC_MASK;
 		sprintf(&s[15], "%02x", x);