[llvm-exegesis] x86 Benchmark Options missing from command line

[RKSimon]

llvm-project/llvm/tools/llvm-exegesis/lib/X86/Target.cpp

Lines 41 to 42 in bbfbec9

	static cl::OptionCategory
	BenchmarkOptions("llvm-exegesis benchmark x86-options");

As mentioned at https://reviews.llvm.org/D138832#inline-1347247 - the x86 command line option category is missing

[llvmbot]

@llvm/issue-subscribers-tools-llvm-exegesis