RNDNU requantization stub using SSE4 with logical shift instructions

PiperOrigin-RevId: 378483143
diff --git a/BUILD.bazel b/BUILD.bazel
index 9a8773d..21174e7 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -3011,7 +3011,8 @@
     "src/qs8-requantization/fp32-sse4.c",
     "src/qs8-requantization/gemmlowp-sse4.c",
     "src/qs8-requantization/rndna-sse4.c",
-    "src/qs8-requantization/rndnu-sse4.c",
+    "src/qs8-requantization/rndnu-sse4-sra.c",
+    "src/qs8-requantization/rndnu-sse4-srl.c",
     "src/qs8-vadd/gen/minmax-sse41-mul16-ld64-x8.c",
     "src/qs8-vadd/gen/minmax-sse41-mul16-ld64-x16.c",
     "src/qs8-vadd/gen/minmax-sse41-mul16-ld64-x24.c",