[PhaseOrdering][AArch64] block_scaling_decompr_8bit.ll - use -passes="default<O3>" to allow DOS to correctly evaluate the RUN command

Necessary for running update_test_checks.py on windows

Author: RKSimon

llvm/test/Transforms/PhaseOrdering/AArch64/block_scaling_decompr_8bit.ll

@@ -1,5 +1,5 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
-; RUN: opt -passes='default<O3>' -S %s | FileCheck %s
+; RUN: opt -passes="default<O3>" -S %s | FileCheck %s
 
 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32"
 target triple = "aarch64"