dt-bindings: display/msm/gpu: Drop redundant reg-names in one if:then:

dt-bindings: display/msm/gpu: Drop redundant reg-names in one if:then:

Top-level reg-names defines already proper order for "reg-names" with
minItems: 1, so no need to repeat it again in one of "if:then:" cases.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Patchwork: https://patchwork.freedesktop.org/patch/707987/
Message-ID: <20260301142033.88851-2-krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>