NEON versions of ARGMAXPOOL microkernels

PiperOrigin-RevId: 322952272
diff --git a/BUILD.bazel b/BUILD.bazel
index d4230ac..f284547 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -882,6 +882,9 @@
 
 # ISA-specific micro-kernels
 NEON_UKERNELS = [
+    "src/f32-argmaxpool/4x-neon-c4.c",
+    "src/f32-argmaxpool/9p8x-neon-c4.c",
+    "src/f32-argmaxpool/9x-neon-c4.c",
     "src/f32-avgpool/9p8x-minmax-neon-c4.c",
     "src/f32-avgpool/9x-minmax-neon-c4.c",
     "src/f32-clamp/gen/neon-x4.c",