Fix compiler warnings for PPC systems. Update CHANGELOG.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/board/tqm5200/tqm5200.c b/board/tqm5200/tqm5200.c
index da4e228..f33d172 100644
--- a/board/tqm5200/tqm5200.c
+++ b/board/tqm5200/tqm5200.c
@@ -444,6 +444,8 @@
 #ifdef CONFIG_BOARD_EARLY_INIT_R
 int board_early_init_r (void)
 {
+	extern int usb_cpu_init(void);
+
 #ifdef CONFIG_PS2MULT
 	ps2mult_early_init();
 #endif /* CONFIG_PS2MULT */
@@ -591,9 +593,9 @@
 		disable_ctrlc(1);
 	}
 #endif
+#endif /* !CONFIG_TQM5200S */
 
 	return 0;
-#endif /* !CONFIG_TQM5200S */
 }
 
 #ifdef CONFIG_VIDEO_SM501