x86/ucode: Improve error handling and container file processing on AMD

x86/ucode: Improve error handling and container file processing on AMD

Do not report error when a patch is not appplicable to current processor,
simply skip it and move on to next patch in container file.

Process container file to the end instead of stopping at the first
applicable patch.

Log the fact that a patch has been applied at KERN_WARNING level, modify
debug messages.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@amd.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Committed-by: Jan Beulich <jbeulich@suse.com>