ARM: dts: imx28-tx28: drop redundant 'panel-name' property

Panel timing bindings do not allow 'panel-name' and there seems to be no
users of it: neither Linux kernel drivers, nor U-boot as of
v2024.07-rc2.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/nxp/mxs/imx28-tx28.dts

@@ -323,7 +323,6 @@
 		display-timings {
 			native-mode = <&timing5>;
 			timing0: timing0 {
-				panel-name = "VGA";
 				clock-frequency = <25175000>;
 				hactive = <640>;
 				vactive = <480>;
@@ -340,7 +339,6 @@
 			};
 
 			timing1: timing1 {
-				panel-name = "ETV570";
 				clock-frequency = <25175000>;
 				hactive = <640>;
 				vactive = <480>;
@@ -357,7 +355,6 @@
 			};
 
 			timing2: timing2 {
-				panel-name = "ET0350";
 				clock-frequency = <6500000>;
 				hactive = <320>;
 				vactive = <240>;
@@ -374,7 +371,6 @@
 			};
 
 			timing3: timing3 {
-				panel-name = "ET0430";
 				clock-frequency = <9000000>;
 				hactive = <480>;
 				vactive = <272>;
@@ -391,7 +387,6 @@
 			};
 
 			timing4: timing4 {
-				panel-name = "ET0500", "ET0700";
 				clock-frequency = <33260000>;
 				hactive = <800>;
 				vactive = <480>;
@@ -408,7 +403,6 @@
 			};
 
 			timing5: timing5 {
-				panel-name = "ETQ570";
 				clock-frequency = <6400000>;
 				hactive = <320>;
 				vactive = <240>;