Translate LOCAL_ANNOTATION_PROCESSORS to java_plugin

The annotation_processors property is deprected, translate
LOCAL_ANNOTATION_PROCESSORS to plugins instead.  Also remove
LOCAL_ANNOTATION_PROCESSOR_CLASSES properties, they are
retrieved from java_plugin dependencies instead.

Bug: 77284273
Test: androidmk_test.go
Change-Id: If6f6177262d5579e03bae58d9eb54a599e3da786