ARM: dts: e60k02: fix power button

The power button was only producing irqs, but no key events,
Forced power down with long key press works, so probably
only a short spike arrives at the SoC.
Further investigation shows that LDORTC2 is off after boot
of the vendor kernel. LDORTC2 is shared with a GPIO at the pmic
which probably transfers the button press to the SoC.
That regulator off at boot, so "regulator-boot-on" is definitively
wrong. So remove that.
Reported-by: NH. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: NAndreas Kemnade <andreas@kemnade.info>
Fixes: c100ea86 ("ARM: dts: add Netronix E60K02 board common file")
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/e60k02.dtsi

@@ -265,11 +265,6 @@
 				regulator-name = "LDORTC1";
 				regulator-boot-on;
 			};
-
-			ldortc2_reg: LDORTC2 {
-				regulator-name = "LDORTC2";
-				regulator-boot-on;
-			};
 		};
 	};
 };