Many of these may not make a difference in the output images, but it's a
good idea to keep the make system as repeatable as possible.
Change-Id: I31804b8ad5805148ed08be7426a242a16f4d0df3
- Moved the target-only .aidl and .logtag rules to java.mk.
- Moved the .proto rules, Java library dependency calculation,
Java resource processing and Java-related
target-specific and global variables setup to a new java_common.java,
which is shared by both target and host Java modules.
- Minor cleanup for the moved code.
Bug: 23597357
Change-Id: Ic3eb72e26bb1a663e5739abe0a935f96b88bc352
