arm64: tegra: Drop unsupported nvidia,lpdr property

The Tegra194 pinmux DT bindings do not define the nvidia,lpdr property,
so drop them from the device trees that have listed them.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra194.dtsi

@@ -536,7 +536,6 @@ pex_rst_c5_out_state: pex_rst_c5_out {
 				pex_rst {
 					nvidia,pins = "pex_l5_rst_n_pgg1";
 					nvidia,schmitt = <TEGRA_PIN_DISABLE>;
-					nvidia,lpdr = <TEGRA_PIN_ENABLE>;
 					nvidia,enable-input = <TEGRA_PIN_DISABLE>;
 					nvidia,io-hv = <TEGRA_PIN_ENABLE>;
 					nvidia,tristate = <TEGRA_PIN_DISABLE>;
@@ -548,7 +547,6 @@ clkreq_c5_bi_dir_state: clkreq_c5_bi_dir {
 				clkreq {
 					nvidia,pins = "pex_l5_clkreq_n_pgg0";
 					nvidia,schmitt = <TEGRA_PIN_DISABLE>;
-					nvidia,lpdr = <TEGRA_PIN_ENABLE>;
 					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
 					nvidia,io-hv = <TEGRA_PIN_ENABLE>;
 					nvidia,tristate = <TEGRA_PIN_DISABLE>;