arm64: dts: apple: t7000: Add missing CPU p-state 7 for J96 and J97

Add missing CPU p-state 7 @ 1512 MHz for iPad mini 4.

Fixes: e97323994f ("arm64: dts: apple: t7000: Add cpufreq nodes")
Signed-off-by: Nick Chan <towinchenmi@gmail.com>
Link: https://lore.kernel.org/r/20250217-mini4-cpufreq-v1-1-8974e90dd806@gmail.com
Signed-off-by: Sven Peter <sven@svenpeter.dev>

arch/arm64/boot/dts/apple/t7000-mini4.dtsi

@@ -57,3 +57,7 @@
 &typhoon_opp06 {
 	status = "okay";
 };
+
+&typhoon_opp07 {
+	status = "okay";
+};

arch/arm64/boot/dts/apple/t7000.dtsi

@@ -84,6 +84,12 @@
 			clock-latency-ns = <42000>;
 			status = "disabled"; /* Not available on N102 */
 		};
+		typhoon_opp07: opp07 {
+			opp-hz = /bits/ 64 <1512000000>;
+			opp-level = <7>;
+			clock-latency-ns = <49000>;
+			status = "disabled"; /* J96 and J97 only */
+		};
 	};
 
 	soc {