Fix detection of L3 cache size on Cortex-A55/A75
Fix detection of L3 cache size on Cortex-A55/A75

Maratyszcza/cpuinfo,Maratyszcza/cpuinfo,pytorch/cpuinfo,pytorch/cpuinfo,Maratyszcza/cpuinfo,Maratyszcza/cpuinfo,pytorch/cpuinfo,pytorch/cpuinfo