of: Move simple-framebuffer device handling from simplefb to of

commit 70939084b46f7d6a4c92a5a957048bb68f5f37f7 from
https://nv-tegra.nvidia.com/r/3rdparty/canonical/linux-jammy.git jetson_36.3

This code is required for both simplefb and simpledrm, so let's move it
into the OF core instead of having it as an ad-hoc initcall in the
drivers.

Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20211212062407.138309-2-marcan@marcan.st
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Change-Id: I2541e65baf844bdd479f159e20bf90dbc0a2954b
Reviewed-on: https://git-master.nvidia.com/r/c/3rdparty/canonical/linux-jammy/+/2982003
(cherry picked from commit cd4c39fdd3c8288f0b5b32861407de8fbf87234d)
Reviewed-on: https://git-master.nvidia.com/r/c/3rdparty/canonical/linux-jammy/+/2984116
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rajeshkumar Ramasamy <rajeshkumar.ramasamy@windriver.com>