CONFIG_TUNE_Z196 is not available for the selected architecture x86.
Result is shown for architecture s390

IBM zEnterprise 114 and 196

configname: CONFIG_TUNE_Z196

Tune code generation
└─>IBM zEnterprise 114 and 196
In linux kernel since version 3.10 (release Date: 2013-06-30)
depends
CONFIG_cc-option