arm64: dts: qcom: msm8996: drop unused slimbus reg-mames

Drop undocumented reg-names from slimbus node - there is only one
address range and Linux implementation does not use it.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220928152027.489543-3-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/msm8996.dtsi

@@ -3330,7 +3330,6 @@ slimbam: dma-controller@9184000 {
 		slim_msm: slim@91c0000 {
 			compatible = "qcom,slim-ngd-v1.5.0";
 			reg = <0x091c0000 0x2C000>;
-			reg-names = "ctrl";
 			interrupts = <0 163 IRQ_TYPE_LEVEL_HIGH>;
 			dmas = <&slimbam 3>, <&slimbam 4>,
 				<&slimbam 5>, <&slimbam 6>;