[libclang/python] Add TypeKind.FLOAT16 (#142634)

Adds FLOAT16 enum for value 32

Fixes #142633

Author: zokrezyl

clang/bindings/python/clang/cindex.py

@@ -2481,6 +2481,7 @@ def spelling(self):
     OBJCSEL = 29
     FLOAT128 = 30
     HALF = 31
+    FLOAT16 = 32
     IBM128 = 40
     COMPLEX = 100
     POINTER = 101