mach-snapdragon: fixup power-domains

mach-snapdragon: fixup power-domains

We don't support the RPM(h)PD power domains in U-Boot, and we don't need
to - the necessary resources are on, and we aren't going to enter any
low power modes.

We could try using a no-op device, but this requires adding a compatible
for every platform, and just pollutes the driver model. So instead let's
just remove every "power-domains" property that references the RPM(h)pd
power controller. This takes <1ms as we're using OF_LIVE.

Of note, this only applies to drivers which are loading post-relocation.
Drivers loaded pre-reloc that reference the rpm(h)pd still need
DM_FLAG_DEFAULT_PD_CTRL_OFF in their flags.

Acked-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>