LoongArch: modify defconfig according to other architectures

LoongArch inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I6BWFP

--------------------------------

1. enable watdog support
2. enable some net class support, used by tc
3. use voluntary preemption
4. compile r8169 driver as m
Signed-off-by: NHongchen Zhang <zhanghongchen@loongson.cn>
Change-Id: I59315f265bfe54a00936b5c47aaa3c2e805d3ee6

arch/loongarch/configs/loongson3_defconfig

@@ -3,7 +3,7 @@ CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
-CONFIG_PREEMPT=y
+CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_BSD_PROCESS_ACCT_V3=y
 CONFIG_TASKSTATS=y
@@ -281,10 +281,17 @@ CONFIG_NET_SCH_TBF=m
 CONFIG_NET_SCH_NETEM=m
 CONFIG_NET_SCH_INGRESS=m
 CONFIG_NET_CLS_BASIC=m
+CONFIG_NET_CLS_TCINDEX=m
+CONFIG_NET_CLS_ROUTE4=m
 CONFIG_NET_CLS_FW=m
 CONFIG_NET_CLS_U32=m
-CONFIG_NET_CLS_CGROUP=m
+CONFIG_NET_CLS_RSVP=m
+CONFIG_NET_CLS_RSVP6=m
+CONFIG_NET_CLS_FLOW=m
+CONFIG_NET_CLS_CGROUP=y
 CONFIG_NET_CLS_BPF=m
+CONFIG_NET_CLS_FLOWER=m
+CONFIG_NET_CLS_MATCHALL=m
 CONFIG_NET_CLS_ACT=y
 CONFIG_NET_ACT_POLICE=m
 CONFIG_NET_ACT_GACT=m
@@ -470,7 +477,7 @@ CONFIG_TXGBE=m
 # CONFIG_NET_VENDOR_RDC is not set
 CONFIG_8139CP=m
 CONFIG_8139TOO=m
-CONFIG_R8169=y
+CONFIG_R8169=m
 # CONFIG_NET_VENDOR_RENESAS is not set
 # CONFIG_NET_VENDOR_ROCKER is not set
 # CONFIG_NET_VENDOR_SAMSUNG is not set
@@ -567,6 +574,11 @@ CONFIG_SENSORS_LM75=m
 CONFIG_SENSORS_LM93=m
 CONFIG_SENSORS_W83795=m
 CONFIG_SENSORS_W83627HF=m
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_WATCHDOG_SYSFS=y
+CONFIG_SOFT_WATCHDOG=m
+CONFIG_GPIO_WATCHDOG=m
 CONFIG_RC_CORE=m
 CONFIG_LIRC=y
 CONFIG_RC_DECODERS=y