[PGO][PGSO] Enable non-cold size opts under partial profile sample PGO.

Summary: Similar to D81020. Follow up D78949.

Reviewers: davidxl

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D82053

llvm/lib/Transforms/Utils/SizeOpts.cpp

@@ -39,7 +39,7 @@ cl::opt<bool> PGSOColdCodeOnlyForSamplePGO(
              "to cold code under sample PGO."));
 
 cl::opt<bool> PGSOColdCodeOnlyForPartialSamplePGO(
-    "pgso-cold-code-only-for-partial-sample-pgo", cl::Hidden, cl::init(true),
+    "pgso-cold-code-only-for-partial-sample-pgo", cl::Hidden, cl::init(false),
     cl::desc("Apply the profile guided size optimizations only "
              "to cold code under partial-profile sample PGO."));