binder RPC: quick callbacks flake

0.02% flaky at up to 1s, so switching to
1500ms. Cloud must be under stress.

Fixes: 389069410
Test: N/A
Change-Id: I8c614d7dcdca004bc439b0b558fff59bf87bd528

Author: Steven Moreland

libs/binder/tests/binderRpcUniversalTests.cpp

@@ -498,9 +498,9 @@ TEST_P(BinderRpc, Callbacks) {
                 // same thread, everything should have happened in a nested call. Otherwise,
                 // the callback will be processed on another thread.
                 if (callIsOneway || callbackIsOneway || delayed) {
-                    using std::literals::chrono_literals::operator""s;
+                    using std::literals::chrono_literals::operator""ms;
                     RpcMutexUniqueLock _l(cb->mMutex);
-                    cb->mCv.wait_for(_l, 1s, [&] { return !cb->mValues.empty(); });
+                    cb->mCv.wait_for(_l, 1500ms, [&] { return !cb->mValues.empty(); });
                 }
 
                 EXPECT_EQ(cb->mValues.size(), 1UL)