tools/b43-tools: update to latest version, fix C23 build

tools/b43-tools: update to latest version, fix C23 build

Update b43-tools to the latest upstream version to fix a
compilation error with C23:

  util.h:25:15: error: 'bool' cannot be defined via 'typedef'
     25 | typedef _Bool bool;
        |               ^~~~

Changelog:
c6fc53f replace custom bool typedef with <stdbool.h>
dadf30c fix format warning in compilation
2fe10ea b43-fwdump: Fix forwarding of arguments to disassembler

Link: https://github.com/openwrt/openwrt/pull/18708
Signed-off-by: Nick Hainke <vincent@systemli.org>