phy: sun4i-usb: remove enable_pmu_unk1 from sun50i_h6_cfg

For the current code, enable_pmu_unk1 only works in non-a83t and non-h6
types. So let's delete it from the sun50i_h6_cfg.

Signed-off-by: Yangtao Li <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/phy/allwinner/phy-sun4i-usb.c

···
 	.disc_thresh = 3,
 	.phyctl_offset = REG_PHYCTL_A33,
 	.dedicated_clocks = true,
-	.enable_pmu_unk1 = true,
 	.phy0_dual_route = true,
 	.missing_phys = BIT(1) | BIT(2),
 };