Fix condition check for onWindowPrepared callbacks test.

Fix a couple of other nits.

Bug: 259735869

Test: ACameraNdkVendorTest

Change-Id: I2ecf9ae0726a8b58f0c6329fc79b26a87fcbd190
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>
diff --git a/camera/ndk/impl/ACameraDevice.cpp b/camera/ndk/impl/ACameraDevice.cpp
index b90f276..1dae0f9 100644
--- a/camera/ndk/impl/ACameraDevice.cpp
+++ b/camera/ndk/impl/ACameraDevice.cpp
@@ -1093,7 +1093,7 @@
                     ACameraCaptureSession_prepareCallback onWindowPrepared;
                     found = msg->findPointer(kCallbackFpKey, (void**) &onWindowPrepared);
                     if (!found) {
-                        ALOGE("%s: Cannot find state callback!", __FUNCTION__);
+                        ALOGE("%s: Cannot find window prepared callback!", __FUNCTION__);
                         return;
                     }
                     if (onWindowPrepared == nullptr) {