Add support for the RCC2 register on Fury class devices.
Based on a patch by Vijay Kumar.
Signed-off-by: NEngin AYDOGAN <engin@bzzzt.biz>
[Peter Maydell: fixed comment typos, minor cleanup of unreachable code]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>