Added ref_clk 'ref' property for GUCTL_REFCLKPER and GFLADJ_REFCLK_FLADJ calculation. This property configure correct value for SOF/ITP counter and period of ref_clk. This patch adds 'ref' property for both dwc3_0 and dwc3_1 cores. Signed-off-by: Piyush Mehta <piyush.mehta@amd.com> Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/417545b948ea12a9301a5e80851f98523be2b443.1661259809.git.michal.simek@amd.com