The PLLs on H3 have a lock bit, which will only be set to 1 when the PLL
is really working.

Add CLK_SET_RATE_UNGATE to the PLLs, otherwise it will timeout when
trying to set PLL clock frequency without enabling it.

Fixes: 0577e485 ("clk: sunxi-ng: Add H3 clocks")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>