drm/hisilicon: Features to support reading resolutions from EDID

mainline inclusion
from mainline-v5.12-rc2
commit a0d078d0
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4M6CD?from=project-issue
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/hisilicon/hibmc?h=v5.12-rc2&id=a0d078d06e516184e2f575f3803935697b5e3ac6



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Use drm_get_edid to get the resolution, if that fails, set it to
a fixed resolution. Rewrite the desrtoy callback function to release
resources.

Signed-off-by: Ma Hai <mahai1@huawei.com>
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Li Dongming <lidongming5@huawei.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1600778670-60370-3-git-send-email-tiantao6@hisilicon.com


Acked-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>