platform/x86: huawei-wmi: Avoid use of global variable when possible

There is no need to access global variable directly when we may derive it
through other means.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2019-10-10 15:16:57 +03:00
commit 3c27f179d5