Rename _complete-android-module-names

A function name with dashes is apparently not universally recognized
by shell versions/variants(?). Using underscore in place of dashes
solves this problem.

Test: ./development/vndk/tools/header-checker/utils/create_reference_dumps.py -l libGLESv1_CM
Change-Id: Id7d701600760140dae9e4762a11f4abd64947d10