[X86] Sync ProcessorTypes and ProcessorSubtypes enums used by getHostCPUName with the version proposed to for compiler-rt's cpu_model.c
[X86] Sync ProcessorTypes and ProcessorSubtypes enums used by getHostCPUName with the version proposed to for compiler-rt's cpu_model.c

This keeps the starting entries in the enums in sync with what's in gcc and in review D35214 for compiler-rt.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@307757 91177308-0d34-0410-b5e6-96231b3b80d8

GPUOpen-Drivers/llvm,apple/swift-llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,llvm-mirror/llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,llvm-mirror/llvm,apple/swift-llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,llvm-mirror/llvm,apple/swift-llvm,llvm-mirror/llvm