qCDebug() and friends could pass the category as a tag in Android

Currently, macros like qCDebug(someCategory) prints the log into Android's logical in the form of:

D [libName.so]: [someCategory]: [rest of the message]

When providing a category it is more correct to use that category as the tag instead which would save users from having to call __android_log_print() manually to get the following outcome:

D [someCategory]: [rest of the message]

 which would act the same way as calling this from Java:

Log.d(TAG, message);