feat(stm32mp2): display CPU info

Print information about CPU type, package and revision.
SoC revision ID of MP2 family are defined with the OTP 102.

Signed-off-by: Maxime Méré <maxime.mere@foss.st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I14a95c8a7cb9b06ce32c2e592ae69a1741067e8d
diff --git a/fdts/stm32mp251.dtsi b/fdts/stm32mp251.dtsi
index c8c50e5..6f39b5a 100644
--- a/fdts/stm32mp251.dtsi
+++ b/fdts/stm32mp251.dtsi
@@ -146,6 +146,9 @@
 			nand2_otp: otp20@50 {
 				reg = <0x50 0x4>;
 			};
+			rev_otp@198 {
+				reg = <0x198 0x4>;
+			};
 			package_otp: package-otp@1e8 {
 				reg = <0x1e8 0x1>;
 			};