Rename SC520 Configuration Options

Options are now all uniformly CONFIG_SYS_SC520_<option>

Signed-off-by: Graeme Russ <graeme.russ at gmail.com>
diff --git a/include/configs/eNET.h b/include/configs/eNET.h
index 447c7bc..2ae79d8 100644
--- a/include/configs/eNET.h
+++ b/include/configs/eNET.h
@@ -40,8 +40,8 @@
 #define DEBUG_PARSER
 
 #define CONFIG_X86			1	/* Intel X86 CPU */
-#define CONFIG_SC520			1	/* AMD SC520 */
-#define CONFIG_SC520_SSI
+#define CONFIG_SYS_SC520		1	/* AMD SC520 */
+#define CONFIG_SYS_SC520_SSI
 #define CONFIG_SHOW_BOOT_PROGRESS	1
 #define CONFIG_LAST_STAGE_INIT		1
 
@@ -142,10 +142,10 @@
  * CPU Features
  */
 #define CONFIG_SYS_SC520_HIGH_SPEED	0	/* 100 or 133MHz */
-#undef  CONFIG_SYS_RESET_SC520			/* use SC520 MMCR's to reset cpu */
-#define CONFIG_SYS_TIMER_SC520			/* use SC520 swtimers */
-#undef  CONFIG_SYS_TIMER_GENERIC		/* use the i8254 PIT timers */
-#undef  CONFIG_SYS_TIMER_TSC			/* use the Pentium TSC timers */
+#undef  CONFIG_SYS_SC520_RESET			/* use SC520 MMCR's to reset cpu */
+#define CONFIG_SYS_SC520_TIMER			/* use SC520 swtimers */
+#undef  CONFIG_SYS_GENERIC_TIMER		/* use the i8254 PIT timers */
+#undef  CONFIG_SYS_TSC_TIMER			/* use the Pentium TSC timers */
 #define CONFIG_SYS_USE_SIO_UART		0       /* prefer the uarts on the SIO to those
 					 * in the SC520 on the CDP */