arm64: dts: rockchip: Remove property support-psr of eDP nodes

Since the PSR feature can help to reduce the power consumption, the
Source device, which can support PSR function, should enable PSR if
the PSR capability of Sink device is detected rather than depending
on the user to add 'support-psr' DTS property manually.

Change-Id: I2f51312621f62519f388e06561fb61f01145256b
Signed-off-by: Damon Ding <damon.ding@rock-chips.com>

arch/arm64/boot/dts/rockchip/rk3576-evb1-v10-edp-NE160QAM-NX1.dts

@@ -88,7 +88,6 @@
 
 &edp {
 	force-hpd;
-	support-psr;
 	status = "okay";
 
 	ports {

arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4-v10-edp-NE160QAM-NX1.dts

@@ -75,7 +75,6 @@
 
 &edp0 {
 	force-hpd;
-	support-psr;
 	status = "okay";
 
 	ports {

arch/arm64/boot/dts/rockchip/rk3588s-tablet-single.dtsi

@@ -416,7 +416,6 @@
 };
 
 &edp0 {
-	support-psr;
 	force-hpd;
 	status = "okay";
 

arch/arm64/boot/dts/rockchip/rk3588s-tablet.dtsi

@@ -363,7 +363,6 @@
 };
 
 &edp0 {
-	support-psr;
 	force-hpd;
 	status = "okay";
 };