Fix log spam: Failed to open libwvm.so

Bug: 7342813
Change-Id: I98852f036e4679a653723fc2bf1435d6e9d7d34c
Fix typo

Change-Id: I311f608d761987d0c714be9ab81188a3ca8eef61
Set net_log to NULL unless debugging.

This way methods can exit early instead of logging by testing if the net_log is NULL.

Change-Id: I49e91460967ba3edad7d7b894a90df0589e8ccb2
Merge "Set net_log to NULL unless debugging." into jb42