[lldb/Test] Disable eh-frame-augment-noop.test on macOS

The test fails on Darwin because a different Asynchronous UnwindPlan is
chosen:

  Asynchronous (not restricted to call-sites) UnwindPlan is 'assembly
  insn profiling'`

instead of what the test expects:

  Asynchronous (not restricted to call-sites) UnwindPlan is 'eh_frame
  CFI'

Author: JDevlieghere

lldb/test/Shell/Unwind/eh-frame-augment-noop.test

@@ -2,6 +2,7 @@
 # those expressions refer to the frame's CFA value.
 
 # UNSUPPORTED: system-windows
+# UNSUPPORTED: system-darwin
 # REQUIRES: target-x86_64, native
 
 # RUN: %clang_host %p/Inputs/call-asm.c %p/Inputs/eh-frame-augment-noop.s -o %t