Revert "[strip.sh] Move remaining GNU binutils usage to llvm binutils"

This reverts commit ad50ce8349.

Bug: 183237575
Reason for revert: Breaks stack unwinding

Change-Id: I256dc77525687fb3e670355587b1eac72158b274

cc/builder.go

@@ -132,7 +132,7 @@ var (
 		blueprint.RuleParams{
 			Depfile:     "${out}.d",
 			Deps:        blueprint.DepsGCC,
-			Command:     "XZ=$xzCmd CLANG_BIN=${config.ClangBin} $stripPath ${args} -i ${in} -o ${out} -d ${out}.d",
+			Command:     "CROSS_COMPILE=$crossCompile XZ=$xzCmd CLANG_BIN=${config.ClangBin} $stripPath ${args} -i ${in} -o ${out} -d ${out}.d",
 			CommandDeps: []string{"$stripPath", "$xzCmd"},
 			Pool:        darwinStripPool,
 		},