enable top in busybox

mfs/linux_mfs/source/busybox/busybox.config

@@ -767,13 +767,13 @@ CONFIG_FEATURE_PS_WIDE=y
 # CONFIG_FEATURE_PS_UNUSUAL_SYSTEMS is not set
 # CONFIG_RENICE is not set
 CONFIG_BB_SYSCTL=y
-# CONFIG_TOP is not set
-# CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE is not set
-# CONFIG_FEATURE_TOP_CPU_GLOBAL_PERCENTS is not set
-# CONFIG_FEATURE_TOP_SMP_CPU is not set
-# CONFIG_FEATURE_TOP_DECIMALS is not set
-# CONFIG_FEATURE_TOP_SMP_PROCESS is not set
-# CONFIG_FEATURE_TOPMEM is not set
+CONFIG_TOP=y
+CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE=y
+CONFIG_FEATURE_TOP_CPU_GLOBAL_PERCENTS=y
+CONFIG_FEATURE_TOP_SMP_CPU=y
+CONFIG_FEATURE_TOP_DECIMALS=y
+CONFIG_FEATURE_TOP_SMP_PROCESS=y
+CONFIG_FEATURE_TOPMEM=y
 CONFIG_UPTIME=y
 CONFIG_WATCH=y