stressapptest: Build with clang for cros_arm64

Use clang/lld to build stressapptest when building for arm64
for a 32-bit arm device.

BUG=chromium:1158158
TEST=CQ

Change-Id: Ib43dbf60aca9bdac75d2d3e828812b3dc6daef56
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2588197
Tested-by: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Yilin Yang (kerker) <kerker@chromium.org>
Auto-Submit: Manoj Gupta <manojgupta@chromium.org>
Reviewed-by: Yilin Yang (kerker) <kerker@chromium.org>
Commit-Queue: Manoj Gupta <manojgupta@chromium.org>
diff --git a/dev-util/stressapptest/stressapptest-1.0.9-r2.ebuild b/dev-util/stressapptest/stressapptest-1.0.9-r3.ebuild
similarity index 100%
rename from dev-util/stressapptest/stressapptest-1.0.9-r2.ebuild
rename to dev-util/stressapptest/stressapptest-1.0.9-r3.ebuild
diff --git a/dev-util/stressapptest/stressapptest-1.0.9.ebuild b/dev-util/stressapptest/stressapptest-1.0.9.ebuild
index b303681..8006bc1 100644
--- a/dev-util/stressapptest/stressapptest-1.0.9.ebuild
+++ b/dev-util/stressapptest/stressapptest-1.0.9.ebuild
@@ -40,13 +40,10 @@
 		unset CC CXX LD STRIP OBJCOPY PKG_CONFIG
 
 		tc-export_build_env BUILD_{CC,CXX}
-		tc-export CC CXX LD STRIP OBJCOPY PKG_CONFIG
-		local binutils_path=$(LD=${CHOST}-ld get_binutils_path_ld)
 
-		export LD="${LD}"
-		export CC="${CC} -B${binutils_path}"
-		export CC_COMPAT="${CC_COMPAT}"
-		export CXX="${CXX} -B${binutils_path}"
+		export LD="${CHOST}-ld.lld"
+		export CC="${CHOST}-clang"
+		export CXX="${CHOST}-clang++"
 
 		econf_args+=" --with-static"
 		sysroot=""