Auto-generate CLAMP micro-kernels

- Templates for F32 CLAMP micro-kernels
- Generator for unit tests

PiperOrigin-RevId: 300224933
diff --git a/scripts/generate-tests.sh b/scripts/generate-tests.sh
index 5d50ce0..ded4130 100755
--- a/scripts/generate-tests.sh
+++ b/scripts/generate-tests.sh
@@ -9,6 +9,9 @@
 tools/generate-gemm-test.py --spec test/q8-igemm.yaml --output test/q8-igemm.cc
 tools/generate-dwconv-test.py --spec test/q8-dwconv.yaml --output test/q8-dwconv.cc
 
+### Tests for U8 micro-kernels
+tools/generate-clamp-test.py --spec test/u8-clamp.yaml --output test/u8-clamp.cc
+
 ### Tests for packing micro-kernels
 tools/generate-pack-test.py --spec test/x32-packx.yaml --output test/x32-packx.cc