Arm64/Sve: AV in GatherLoad* APIs

[kunalspathak]

Sve_GatherVector_Bases_double_ulong is failing for me with below call stack:

>	clrjit_universal_arm64_x64.dll!Compiler::fgValueNumberAddExceptionSetForIndirection(GenTree * tree, GenTree * baseAddr) Line 13618	C++
 	clrjit_universal_arm64_x64.dll!Compiler::fgValueNumberHWIntrinsic(GenTreeHWIntrinsic * tree) Line 12461	C++
 	clrjit_universal_arm64_x64.dll!Compiler::fgValueNumberTree(GenTree * tree) Line 12056	C++
 	clrjit_universal_arm64_x64.dll!Compiler::fgValueNumberBlock(BasicBlock * blk) Line 10554	C++
 	clrjit_universal_arm64_x64.dll!Compiler::fgValueNumber() Line 10340	C++
 	clrjit_universal_arm64_x64.dll!CompilerPhaseWithStatus::DoPhase() Line 132	C++

runtime/src/coreclr/jit/valuenum.cpp

Line 13618 in a0b8890

ValueNumPair baseVNP = vnStore->VNPNormalPair(baseAddr->gtVNPair);

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