Werk #3265: mk_inventory.solaris: fix problem on Solaris 10, do prtdiag and prtpicl only in global zone

Component	HW/SW inventory
Title	mk_inventory.solaris: fix problem on Solaris 10, do prtdiag and prtpicl only in global zone
Date	Mar 7, 2016
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.4.0i1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT 1.2.8b5 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

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