configs: enable guest halt polling support

Guest halt polling can reduce the latency of waking a task on an idle vCPU.
The user should remove idle=* from kernel cmdline to put it to work.
Signed-off-by: NYihao Wu <wuyihao@linux.alibaba.com>
Acked-by: NMichael Wang <yun.wang@linux.alibaba.com>

config-4.19.y-x86_64

@@ -541,6 +541,8 @@ CONFIG_X86_INTEL_PSTATE=y
 CONFIG_CPU_IDLE=y
 # CONFIG_CPU_IDLE_GOV_LADDER is not set
 CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_IDLE_GOV_HALTPOLL=y
+CONFIG_HALTPOLL_CPUIDLE=y
 # CONFIG_INTEL_IDLE is not set
 
 #

config-4.19.y-x86_64-debug

@@ -546,6 +546,8 @@ CONFIG_X86_INTEL_PSTATE=y
 CONFIG_CPU_IDLE=y
 # CONFIG_CPU_IDLE_GOV_LADDER is not set
 CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_IDLE_GOV_HALTPOLL=y
+CONFIG_HALTPOLL_CPUIDLE=y
 # CONFIG_INTEL_IDLE is not set
 
 #