Define the one needed struct instead of involving an stm32 crate.

The stm32h7 crate and the stm32-metapac crates are not practical given
that they cause difficulties in compiling humility for multiple OS
environments and they require a good bit of code to coerce into making
generalized GPIO register decoding.

Just define the one needed structure.

Author: lzrd

Cargo.lock

@@ -247,7 +247,6 @@ serde-xml-rs = "0.5.1"
 sha2 = "0.10.1"
 splitty = "0.1.0"
 srec = "0.2"
-stm32h7 = { version = "0.14", features = ["stm32h753"] }
 strum = "0.22"
 strum_macros = "0.22"
 syn = "1.0"
@@ -258,7 +257,8 @@ thiserror = "1.0"
 toml = "0.5"
 trycmd = "0.13.2"
 winapi = "0.3.9"
-zerocopy = "0.6.1"
+zerocopy = "0.6.6"
+zerocopy-derive = "0.6.6"
 zip = "0.6.4"
 
 [profile.release]

Cargo.toml

@@ -9,8 +9,6 @@ hif.workspace = true
 clap.workspace = true
 anyhow.workspace = true
 parse_int.workspace = true
-lazy_static.workspace = true
-stm32h7.workspace = true
 zerocopy.workspace = true
 
 humility-cli.workspace = true