To support open more than one render node

Tracked-On: OAM-104363
Signed-off-by: HeYue <yue.he@intel.com>

When in sriov mode, MMAP_GTT will fail for tiled buffer. Only alloc
no tile buffer for sriov to avoid potential map fail on tiled buffer.
Tried with gfxbench, performance affect is not obvious.

Tracked-On: OAM-105096
Signed-off-by: chenyanxzhu <chenyanx.zhu@intel.com>

This is to help fix Coverity issue in minigbm
project.

Tracked-On: OAM-106640
Signed-off-by: Ren Chenglei <chenglei.ren@intel.com>

This is to help fix incorrect deallocator used
in minigbm

Tracked-On: OAM-107272
Signed-off-by: Ren Chenglei <chenglei.ren@intel.com>

when we use format HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED to
allocate the buffer, we get the buffer with format
DRM_FORMAT_XBGR8888. The validateBufferSize will return an error
because format mismatch. So we should ignore this type.

Tracked-On: OAM-110999
Signed-off-by: zhangyichix <yichix.zhang@intel.com>