vdc: use libbase logging and log directly to kmsg on boot

Init is no longer calling vdc with logwrapper, so it must take care of
logging to kmsg directly.

Bug: 36278706
Test: observe logging in kmsg on boot and stderr on normal usage

(cherry picked from commit f71511ac4199f273744b8e0adf266c6e911918aa)

Change-Id: Ieb643918f11bdde4f99ec7f3ec083efbb326e809
1 file changed