slackpkg: fix matching some special cases in package names.

[majekw]

SUMMARY

There are some special cases in Slackware package naming which are not covered by $ARCH|noarch condition:

• package kernel-headers has architecture set to x86 on x86_64
• there are also some firmware packages with architecture set to fw

This PR adds check for kernel-headers special case and adds fw to other expected architectures.

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

slackpkg.py

ADDITIONAL INFORMATION

For example, try to install package kernel-headers.
Module runs slackpkg install kernel-headers (installs it if package is not present), then check is run if package is installed, but it can't find it because architecture part of package name is different (x86 instead of expected x86_64) and task fails.

Similar thing for firmware files, for example zd1211-firmware-1.4-fw-1. It fails because architecture part is set to fw and doesn't match current condition.

Example output from system where kernel-headers are already installed

$ansible mii -m slackpkg -a "name=kernel-headers"
mii | FAILED! => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "msg": "failed to install kernel-headers: \nLooking for kernel-headers in package list. Please wait... DONE\n\nNo packages match the pattern for install. Try:\n\n\t/usr/sbin/slackpkg reinstall|upgrade \n\n\n",
    "stderr": "",
    "stderr_lines": []
}

[ansibullbot]

cc @KimNorgaard
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[felixfontein]

Looks good to me. @KimNorgaard could you please take a look?

[felixfontein]

@majekw do you want to continue to work on this, or should we merge it?

[majekw]

It's ready to merge.
I force pushed as Github choose wrong e-mail for commit, so I corrected it, but nothing more was changed. Sorry for making confusion.

[felixfontein]

I'll wait a bit more so that @KimNorgaard can take a look when possible.

[KimNorgaard]

Looks good

[felixfontein]

@majekw @Andersson007 @KimNorgaard thanks a lot!