FIX: lutil_quvi_init: Pass handle value to quvi_errmsg

quvi_t handle is passed by its address to lutil_quvi_init. Pass the
handle value to quvi_errmsg, not the pointer to the handle.

This fixes the issue described in
  http://article.gmane.org/gmane.comp.web.flash.quvi/247
as
  error: while initializing libquvi: Not an error

Steps to reproduce:
  * Build and install everything {libquvi-scripts,libquvi,quvi}
  * Uninstall libquvi-scripts
  * Run quvi

Signed-off-by: Toni Gundogdu <legatvs@gmail.com>