ARM: dts: exynos: Add and enable 32 kHz modem clock in Trats

The PMIC has a 32768 Hz clock used by the modem which is implemented by
driver as a regulator.  Add and enable it to be sure modem get's its
signal.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200830135200.24304-10-krzk@kernel.org

arch/arm/boot/dts/exynos4210-trats.dts

@@ -456,6 +456,11 @@ EN32KHZ_AP {
 				regulator-name = "EN32KHZ_AP";
 				regulator-always-on;
 			};
+
+			EN32KHZ_CP {
+				regulator-name = "EN32KHZ_CP";
+				regulator-always-on;
+			};
 		};
 	};
 };