Merge https://gitlab.denx.de/u-boot/custodians/u-boot-riscv

CI: https://source.denx.de/u-boot/custodians/u-boot-riscv/-/pipelines/22292

- Add rdcycle to RISC-V exception command
- Some fixes and refactoring
diff --git a/arch/arm/dts/imx8mq-u-boot.dtsi b/arch/arm/dts/imx8mq-u-boot.dtsi
index e1cd6f8..9b895a6 100644
--- a/arch/arm/dts/imx8mq-u-boot.dtsi
+++ b/arch/arm/dts/imx8mq-u-boot.dtsi
@@ -111,6 +111,8 @@
 #endif
 				#address-cells = <1>;
 
+				offset = <0x57c00>;
+
 				images {
 					uboot {
 						arch = "arm64";