Merge tag 'gvt-next-2022-04-29' of https://github.com/intel/gvt-linux into drm-intel...

Merge tag 'gvt-next-2022-04-29' of https://github.com/intel/gvt-linux into drm-intel-next

gvt-next-2022-04-29

Introduce fixes from previous pull.
- Fix a compiling warning of non-static funtion only having one caller.
- Fix a potential NULL pointer reference in the code re-factor.
- Fix a compiling error when CONFIG_DRM_I915_DEBUG_RUNTIME_PM=n

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
From: "Wang, Zhi A" <zhi.a.wang@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9c2fc678-2e6e-a9d5-a540-2a6bfda31196@intel.com