Update dbg-value-range.ll test after 28bda77 (#3236)

Update a test after llvm-project commit 28bda77 ("Introduce
MCAsmInfo::UsesSetToEquateSymbol and prefer = to .set", 2025-06-11).

Original commit:
KhronosGroup/SPIRV-LLVM-Translator@46f225a7d0aa111

Author: svenvh

llvm-spirv/test/DebugInfo/X86/dbg-value-range.ll

@@ -63,7 +63,7 @@ declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
 ;CHECK-NEXT: [[CLOBBER:Ltmp[0-9]*]]
 
 ;CHECK:Ldebug_loc0:
-;CHECK-NEXT: Lset{{.*}} = 
+;CHECK-NEXT: Lset{{.*}} =
 ;CHECK-NEXT:	.quad
 ;CHECK-NEXT: [[CLOBBER_OFF:Lset.*]] = [[CLOBBER]]-{{.*}}
 ;CHECK-NEXT:	.quad	[[CLOBBER_OFF]]