vndk-def: Add more vendor lib search paths

This commit adds /vendor/lib/hw and /vendor/lib/egl to the search path
for vendor processes.  The change in this CL matches with the latest
`ld.config.txt` in `system/core/rootdir/ld.config.txt.in`.

Bug: 64503245
Test: Run vndk_definition_tool.py and a false error about missing
a library disappears.

Change-Id: If2e3c03d5049c1893cabed84c78f760fa251d308