x86: msi-laptop: fix memleak
x86: msi-laptop: fix memleak

1. fix two visible mistakes:
    * when load_scm_model_init faild, we should call platform_device_del(msipf_device)
    * msipf_attribute_group should be remove in err case

2. change some tags, give them real meaning.

Signed-off-by: Libo Chen <03ac321f4fc44d5558b43fe86a753e021008f32d@huawei.com>
Signed-off-by: Matthew Garrett <d1dada306f6f6bc535ec5238317ee8d221588a1a@nebula.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs