[ACTIVITY] report week ending 15 Jan

Progress: * UM-2 [QEMU upstream maintainership] + code review, pullreq + fixed the "breaks a gitlab CI run" issue with the 'merge docs into a single sphinx manual' patch * QEMU-364 [QEMU support for ARMv8.1-M extensions] + Progress with the SSE-300 model: - finished model of new timer device - updated iotkit-sysctl register block with SSE-300 specific behaviour - implemented simple dummy model of new CPU<N>_PWRCTRL register block - made sse-300 code more data-driven so it can handle sse-300 putting some of the devices at different places

thanks -- PMM