Create DE_n and CE_n APEX data directories.

This creates an apexdata directory under /data/misc_de/<user> and
/data/misc_ce/<user>, and also creates a directory under that for
every APEX that is installed.

See go/apex-data-directories.

APEXes are discovered by scanning the /apex directory. It may be better
to delegate this process to a library, but it is proposed to defer that
change to a future CL.

Bug: 141148175
Test: Built and flashed, checked directories were created.
Change-Id: I95a060b4f42241c91da25a779e61a8f85ca1914c
1 file changed