Use service name mapping key to avoid logic conflict.

[horizonzy]

What is the purpose of the change

Now use REGISTRY_TYPE_KEY to judge is publish service name mapping or not, but this key is meaningful for RegistryProtol, maybe it will influence the origin logic.

So add a particular key to judge is publish service name mapping info or not.

[codecov-commenter]

Codecov Report

Merging #8184 (2677643) into master (149d1f6) will increase coverage by 0.21%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #8184      +/-   ##
============================================
+ Coverage     60.99%   61.21%   +0.21%     
  Complexity      490      490              
============================================
  Files          1090     1090              
  Lines         43951    43950       -1     
  Branches       6423     6418       -5     
============================================
+ Hits          26810    26905      +95     
+ Misses        14156    14065      -91     
+ Partials       2985     2980       -5     

Impacted Files	Coverage Δ
...apache/dubbo/common/constants/CommonConstants.java	100.00% <ø> (ø)
...in/java/org/apache/dubbo/config/ServiceConfig.java	66.57% <100.00%> (+4.03%)	⬆️
...g/apache/dubbo/remoting/p2p/support/FileGroup.java	41.50% <0.00%> (-22.65%)	⬇️
...mmon/serialize/kryo/utils/AbstractKryoFactory.java	75.43% <0.00%> (-3.51%)	⬇️
.../metadata/definition/ServiceDefinitionBuilder.java	83.72% <0.00%> (-2.77%)	⬇️
...bo/registry/client/FileSystemServiceDiscovery.java	67.44% <0.00%> (-2.33%)	⬇️
...pache/dubbo/registry/support/AbstractRegistry.java	77.40% <0.00%> (-1.49%)	⬇️
...figcenter/file/FileSystemDynamicConfiguration.java	31.42% <0.00%> (-0.96%)	⬇️
.../org/apache/dubbo/monitor/dubbo/MetricsFilter.java	66.98% <0.00%> (-0.95%)	⬇️
...gistry/client/EventPublishingServiceDiscovery.java	72.83% <0.00%> (-0.92%)	⬇️
... and 39 more

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[xiaoheng1]

LGTM