Using the third party lxml library for the very simple parsing task this
script performs in unnecessary, so switch to Python's built-in
HTMLParser.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
Add a script to extract HTTP status values and format them
in a way that is both human readable and machine parseable.
Each line of output is of the form:
```
HTTP_{key}_{upper_val} = {key}, /**< val */
```
Signed-off-by: Christopher Friedt <cfriedt@meta.com>