CONFIG_MACH_JAZZ is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

Support for the Jazz family of machines

configname: CONFIG_MACH_JAZZ

Linux/MIPS Kernel Configuration
└─>Machine selection
└─>Support for the Jazz family of machines
In linux kernel since version 2.6.12  
This a family of machines based on the MIPS R4030 chipset which was
used by several vendors to build RISC/os and Windows NT workstations.
Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
Olivetti M700-10 workstations.