Prevents bug where old username would remain if the new username was shorter in length.

This hasn't been used since ba8ff096

We can just call the function instead of duplicating the code here. This
also prevents an unused function warning.

We also don't need to take the lambda capture by reference. It's just a
u64 value, so by value is fine here.

Also gets rid of an unused variable.

Just a few overlooked services.

* Fixed conflict with nfp

* Few fixups for nfc

* Conflict 2

* Fixed AttachAvailabilityChangeEvent

* Conflict 3

* Fixed byte padding

* Refactored amiibo to not reside in "System"

* Removed remaining references of nfc from system

* used enum for Nfc GetStateOld

* Added missing newline

* Moved file operations to front end

* Conflict 4

* Amiibos now use structs and added mutexes

* Removed amiibo_path

Everything from here is completely unused and also written with the
notion of supporting 32-bit architecture variants in mind. Given the
Switch itself is on a 64-bit architecture, we won't be supporting 32-bit
architectures. If we need specific allocation functions in the future,
it's likely more worthwhile to new functions for that purpose.

MinGW provides POSIX functions

There seems to be more such as type 1, and 2. Unsure what these currently are but when a game hits them we can investigate and add the rest

Used by LovePotion Lua Homebrew. Stubbed as connected to official Nintendo Switch dock.

Updated based off information provided by Switchbrew.

Added based off information provided by Switchbrew.

Updated based off information from Switchbrew

Also introduces the new prepo:a2 service.

Updated based off information provided by Switchbrew.