dt-bindings: clock: mmcc-sdm660: Add missing MDSS reset

dt-bindings: clock: mmcc-sdm660: Add missing MDSS reset

Add definition for display subsystem reset control, so display
driver can reset display controller properly, clearing any
configuration left there by bootloader. Since 6.17 after
PM domains rework it became necessary for display to function.

Fixes: 0e789b491ba0 ("pmdomain: core: Leave powered-on genpds on until sync_state")
Cc: stable@vger.kernel.org # 6.17
Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20251116-sdm660-mdss-reset-v2-1-6219bec0a97f@postmarketos.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>