Unintentionally introduced in 552d5071

This option allows picking the compatibility profile since a lot of bugs
are fixed in it. We devs will use this option to easierly debug current
problems in our Core implementation.:wq

It was possible for "samplers" to be read without being written. This
addresses that.

This call was added to the SVC handlers in the 8.0.0 kernel, so we can
finally give it a name.

These two service functions are literally hardcoded to always return
these values without any other error checking.

Responsible for displaying error codes and messages

As opposed to using Core::System::GetInstance()