Generate a clock node in the FDT (ARM)
#include <qvm/firmware.h>
int gfdt_get_clock(int node, unsigned freq)
If one doesn't already exist, this function creates a clock node for an FDT. The freq argument sets the clock frequency the guest will see; for example, to set the clock frequency to 32.768 KHz, set freq to 32768.
If successful, a phandle for the node; otherwise errno is set.