[LLDB] Skip test_launch_simple from TestTargetAPI.py on Arm/AArch64 Linux

Recently added TestTargetAPI.py test "test_launch_simple" is failing on
Arm/AArch64 Linux targets. Putting them to skip until fixed.

Differential Revision: https://reviews.llvm.org/D85235

lldb/test/API/python_api/target/TestTargetAPI.py

@@ -153,6 +153,7 @@ class TargetAPITestCase(TestBase):
 
     @add_test_categories(['pyapi'])
     @skipIfWindows  # stdio manipulation unsupported on Windows
+    @skipIf(oslist=["linux"], archs=["arm", "aarch64"])
     def test_launch_simple(self):
         d = {'EXE': 'b.out'}
         self.build(dictionary=d)