WAsm SIMD implementation of QU8 Q31 requantization

PiperOrigin-RevId: 324747002
diff --git a/BUILD.bazel b/BUILD.bazel
index a6ebd3a..1833cd7 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -851,6 +851,7 @@
     "src/qs8-requantization/fp32-wasmsimd.c",
     "src/qs8-requantization/q31-wasmsimd.c",
     "src/qu8-requantization/fp32-wasmsimd.c",
+    "src/qu8-requantization/q31-wasmsimd.c",
     "src/x32-fill/wasmsimd.c",
     "src/x32-packx/x4-wasmsimd.c",
     "src/x32-pad/wasmsimd.c",