[board] refactor directory, add init-dram case macro module for 100ask-d1-h-rs

[Placebo27]

Work description

1. Refactor directory, change directory structure src/main.rs to src/bin/hello-world.rs and src/bin/led-lightup.rs.

   Before:  100ask-d1-h-rs                     After:  100ask-d1-h-rs 
             └── src                                    ├── macros
                 └── main.rs                            └── src
                                                            └── bin
                                                                └── hello-world.rs
                                                                └── init-dram.rs
                                                                └── led-lightup.rs
   

2. Initialize the memory controller and print out the size of the DRAM. Refer to https://github.com/oreboot/oreboot/blob/main/src/mainboard/sunxi/nezha/bt0/src/mctl.rs, which compliances with the open source license GPL-2.0 license.

3. Add field bin to specify the name of the binary file in the xtask command. We can now use xtask by command cargo flash hello-world nor --release, cargo flash init-dram nor --release and cargo flash led-lightup nor --release.

Test results

1. cargo flash hello-world nor --release and cargo flash init-dram nor --release :

3. cargo flash led-lightup nor --release:

lightup.led.mp4

[luojia65]

I can repreduce test results. Code format is nice and clean, it introduces simple test cases files (rewritten hello-world, dram-init into Rust, introduced new test case led-lightup). The test cases can be as simple as:

#![no_std]
#![no_main]

use panic_halt as _;
use syterkit_100ask_d1_h::{entry, println, Clocks, Peripherals};

#[entry]
fn main(p: Peripherals, c: Clocks) {
    println!("Hello World!");
}

Link: https://github.com/YuzukiHD/SyterKit/blob/ef24c9fe1e63f0c3a06b4832f7dd0bc6b390e571/board/100ask-d1-h-rs/src/bin/hello-world.rs

(In the future, we can do: use syterkit::{entry, println, Clocks, Peripherals}; after further code reformations)

In conclusion, this PR LGTM. In the future we can rewrite SyterBoot example into Rust as well.