[hdsc] HC32L110 bring up

[vesim987]

As a disclaimer:

• this thing is some weird mix of CortexM0+ and peripherals from random 8051 MCU
• the documentation is lacking
• the official SDK is barely helping
• function configuration for pins is a mess, so most likely i will need to do it outside the standard gpio part of the HAL.

Don't yell at me for random numbers in the code, a lot of it is from poking the MCU with a stick and seeing what happens :D And also, examples are taken from rp2xxx i plan to keep similar interface where applicable, most of configuration is most likely going to be comptime-only due to the limited space.

[arkadiuszwojcik]

I think you can remove all examples for this HAL except blinky and some other simple ones that might work. BTW, a very unorthodox selection of HAL to work with ;)

[mattnite]

@vesim987 are you going to finish this?