binderSafeInterfaceTest: another quick flake fix

P.S. we should delete safe interface and move everything
to using AIDL-generated interfaces. It doesn't support
all the things AIDL does, and we don't want so many
ways of doing things.

Change-Id: I92c97e458314c0c85ec9ca8eab2c1552abec8ca6
Fixes: 387346410
Test: TH
diff --git a/libs/binder/tests/binderSafeInterfaceTest.cpp b/libs/binder/tests/binderSafeInterfaceTest.cpp
index 849dc7c..7d1556e 100644
--- a/libs/binder/tests/binderSafeInterfaceTest.cpp
+++ b/libs/binder/tests/binderSafeInterfaceTest.cpp
@@ -789,7 +789,7 @@
         std::optional<int32_t> waitForCallback() {
             std::unique_lock<decltype(mMutex)> lock(mMutex);
             bool success =
-                    mCondition.wait_for(lock, 100ms, [&]() { return static_cast<bool>(mValue); });
+                    mCondition.wait_for(lock, 1000ms, [&]() { return static_cast<bool>(mValue); });
             return success ? mValue : std::nullopt;
         }