[lldb/test] Fix a fragile assumption in TestTypeGetModule

the binary can contain more than three compile units if the compiler
support files (crtbegin/end, etc.) come with their own debug info.

lldb/test/API/functionalities/type_get_module/TestTypeGetModule.py

@@ -67,7 +67,7 @@ class TestTypeGetModule(TestBase):
         exe_module = self.find_module(target, 'a.out')
 
         num_comp_units = exe_module.GetNumCompileUnits()
-        self.assertEqual(num_comp_units, 3)
+        self.assertGreaterEqual(num_comp_units, 3)
 
         comp_unit = self.find_comp_unit(exe_module, 'compile_unit1.c')
         cu_type = self.find_type(comp_unit.GetTypes(), 'compile_unit1_type')