Fix duplicate copy file rules

If these libraries are built, both BUILD_COPY_FILES and
BUILD_SHARED_LIBRARY would copy the headers. This would create a warning
because multiple rules would define the same target header file.

Bug: 27302058
Change-Id: If91bd70d2320aaaee9679642ff9ea48b99739cbd
(cherry picked from commit b360857e924f57588e29e47b047519ce097beed6)
1 file changed