[clang]: fix __neon_vector__type support when using OpenMP offloading

Author: pradt2

clang/test/Sema/bug113094.cpp

@@ -0,0 +1,6 @@
+// RUN: %clang -fopenmp --offload-arch=sm_90 -nocudalib -target aarch64-unknown-linux-gnu -c -Xclang -verify %s
+// REQUIRES: aarch64-registered-target
+
+// expected-no-diagnostics
+
+typedef __attribute__ ((__neon_vector_type__ (4))) float __f32x4_t;