SpringBoot Use CachedIntrospectionResults.IGNORE_BEANINFO_PROPERTY_NAME instead of "spring.beaninfo.ignore"

I think there is no reason to use hardcoded "spring.beaninfo.ignore" instead of CachedIntrospectionResults.IGNORE_BEANINFO_PROPERTY_NAME

Comment From: pivotal-cla

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Comment From: pivotal-cla

@MangKyu Thank you for signing the Contributor License Agreement!

Comment From: snicoll

@MangKyu thank you for making your first contribution to Spring Boot.