CONFIG_PA7100LC is not available for thedefaultarchitecture x86.
Result is shown for architecture parisc

PA7100LC

configname: CONFIG_PA7100LC

Processor type
└─>PA7100LC
In linux kernel since version 2.6.12  
Select this option for the PCX-L processor, as used in the
712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
D200, D210, D300, D310 and E-class