Less agressive initialization process (do not reset the chip,
closes ticket #1154; preserve application mode)
Fix temp1 (instead of temp2) limits being unsettable in application
mode 2 (tickets #894 and #1219).
Ensure that temp2 and in4 are not used at the same time (ticket
#894).
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2516 7894878c-1315-0410-8ee3-d5d059ff63e0