[LLDB] Correct env vars for Android port selection

These should have "LOCAL" in them.

First added in 1e210ab.

lldb/docs/use/remote.rst

@@ -138,7 +138,7 @@ further using the platform shell command.
 When using the "remote-android" platform, the client LLDB forwards two ports, one
 for connecting to the platform, and another for connecting to the gdbserver.
 The client ports are configurable through the environment variables
-ANDROID_PLATFORM_PORT and ANDROID_PLATFORM_GDB_PORT, respectively.
+ANDROID_PLATFORM_LOCAL_PORT and ANDROID_PLATFORM_LOCAL_GDB_PORT, respectively.
 
 Launching a locally built process on the remote machine
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