arm64: dts: ti: k3-am65*: Drop bootargs

Drop bootargs from the dts. earlycon is a debug property that should be
enabled only when debug is desired and not as default - see referenced
link on discussion on this topic.

Cc: Jan Kiszka <jan.kiszka@siemens.com>
Link: https://lore.kernel.org/linux-arm-kernel/81134eb9-2b7d-05bc-3035-a47f020861a8@linaro.org/Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Link: https://lore.kernel.org/r/20230419141222.383567-3-nm@ti.comSigned-off-by: Vignesh Raghavendra <vigneshr@ti.com>

arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi

@@ -21,7 +21,6 @@ aliases {
 
 	chosen {
 		stdout-path = "serial3:115200n8";
-		bootargs = "earlycon=ns16550a,mmio32,0x02810000";
 	};
 
 	reserved-memory {

arch/arm64/boot/dts/ti/k3-am654-base-board.dts

@@ -15,7 +15,6 @@ / {
 
 	chosen {
 		stdout-path = "serial2:115200n8";
-		bootargs = "earlycon=ns16550a,mmio32,0x02800000";
 	};
 
 	memory@80000000 {