Fix new found CFG_

Also fix some minor typos.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/include/configs/at91sam9263ek.h b/include/configs/at91sam9263ek.h
index fc7c941..d9ebc87 100644
--- a/include/configs/at91sam9263ek.h
+++ b/include/configs/at91sam9263ek.h
@@ -32,7 +32,7 @@
 #define AT91_MAIN_CLOCK		16367660	/* 16.367 MHz crystal */
 #define AT91_MASTER_CLOCK	100000000	/* peripheral */
 #define AT91_CPU_CLOCK		200000000	/* cpu */
-#define CFG_AT91_PLLB		0x133a3e8d	/* PLLB settings for USB */
+#define CONFIG_SYS_AT91_PLLB	0x133a3e8d	/* PLLB settings for USB */
 #define CONFIG_SYS_HZ		1000000		/* 1us resolution */
 
 #define AT91_SLOW_CLOCK		32768	/* slow clock */