Recommended update for yast2

This recommended update for yast2 fixes the following issues:
- Update to version 3.1.109.1
* Better handling of line breaks in system log viewer (bnc#912169)
* fixed \r, \f, \v and \b characters lost during conversion to Ruby
* enable automatic rubocop style checker and adjust code to YaST style guide
* Treat PowerNV platform as CHRP

Fixed bugs
bnc#912169
"System Log" not displaying some log files correctly
Selected Binaries
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