CameraService: Logcat conflicting devices on rejected open

Already in dumpsys log, but also put into logcat for feedback reports

Also fix a minor warning about an uninitialized variable.

Bug: 21063372
Change-Id: I04b45932e4500ac72aaa1cb724abc8a82a0e70e8
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index fc9a332..82aa566 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -959,6 +959,10 @@
                         "(PID %" PRId32 ", priority %" PRId32 ")", i->getKey().string(),
                         String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
                         i->getPriority());
+                ALOGE("   Conflicts with: Device %s, client package %s (PID %"
+                        PRId32 ", priority %" PRId32 ")", i->getKey().string(),
+                        String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
+                        i->getPriority());
             }
 
             // Log the client's attempt
@@ -1975,7 +1979,7 @@
         auto conflicting = i->getConflicting();
         auto clientSp = i->getValue();
         String8 packageName;
-        userid_t clientUserId;
+        userid_t clientUserId = 0;
         if (clientSp.get() != nullptr) {
             packageName = String8{clientSp->getPackageName()};
             uid_t clientUid = clientSp->getClientUid();