Defined the config_rawContactsEligibleDefaultAccountTypes in the

framework's config.

Account types in this config_rawContactsEligibleDefaultAccountTypes
array can be set as the default account. OEM can customize their own
default account types.

Bug: b/364731608
Test: unit test
Flag:com.android.providers.contacts.flags.enable_new_default_account_rule_flag

	modified:   core/res/res/values/config.xml
	modified:   core/res/res/values/symbols.xml

Change-Id: I6b4813bb27dd8a1c7f8b91509628f462a230224e