LPS-46445 ServiceBuilder is modifying unmodifiable List

CC @hhuijser

Guys, ServiceBuilder is failing with:
     [echo] java.lang.UnsupportedOperationException
     [echo] 	at java.util.AbstractList.remove(AbstractList.java:161)
     [echo] 	at java.util.AbstractList$Itr.remove(AbstractList.java:374)
     [echo] 	at java.util.AbstractCollection.remove(AbstractCollection.java:293)
     [echo] 	at com.liferay.portal.tools.servicebuilder.ServiceBuilder._createExtendedModel(ServiceBuilder.java:1985)
     [echo] 	at com.liferay.portal.tools.servicebuilder.ServiceBuilder.<init>(ServiceBuilder.java:758)
     [echo] 	at com.liferay.portal.tools.servicebuilder.ServiceBuilder.main(ServiceBuilder.java:251)

I am merely fixing it in order to continue my other works.

We should reconsider this ListUtil.fromArray() -> Arrays.asList(), they are not logically the same(Arrays.asList() creates an unmodifiable List), this replacement may also break in other places, please recheck with them.