vf610twr: Remove SoC name from U-Boot prompt

We've been dropping SoC name from U-Boot prompt as it increase
complexity for automatic testing and makes line longer for no good
reason.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Tested-by: Andy Voltz <andy.voltz@timesys.com>

include/configs/vf610twr.h

@@ -177,7 +177,7 @@
 #define CONFIG_SYS_LONGHELP		/* undef to save memory */
 #define CONFIG_SYS_HUSH_PARSER		/* use "hush" command parser */
 #define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
-#define CONFIG_SYS_PROMPT		"Vybrid U-Boot > "
+#define CONFIG_SYS_PROMPT		"=> "
 #undef CONFIG_AUTO_COMPLETE
 #define CONFIG_SYS_CBSIZE		256	/* Console I/O Buffer Size */
 #define CONFIG_SYS_PBSIZE		\