RPC Binder: setMaxOutgoing{Threads,Connections}

This API is updated to emphasize that it is placing a limit
on the number of connections that will be started corresponding
to threads in a remote pool. These connections won't actually
correspond to threads in the process that this API is called.

Documentation has also been updated to clarify a few questions
from an internal discussion forum.

Fixes: 270374393
Test: binderRpcTest
Change-Id: Ia0d9f0d0f42f58a2c63bf506476b33985f091a34
diff --git a/libs/binder/tests/binderHostDeviceTest.cpp b/libs/binder/tests/binderHostDeviceTest.cpp
index 464da60..77a5fa8 100644
--- a/libs/binder/tests/binderHostDeviceTest.cpp
+++ b/libs/binder/tests/binderHostDeviceTest.cpp
@@ -66,7 +66,7 @@
 void initHostRpcServiceManagerOnce() {
     static std::once_flag gSmOnce;
     std::call_once(gSmOnce, [] {
-        setDefaultServiceManager(createRpcDelegateServiceManager({.maxOutgoingThreads = 1}));
+        setDefaultServiceManager(createRpcDelegateServiceManager({.maxOutgoingConnections = 1}));
     });
 }