allwinner: Rework the BUS_PASS on drivers

• Put all clock and control unit driver in BUS_PASS_RESOURCE except for the DE2 CCU as it needs the main CCU to be available.
• Use BUS_PASS_CPU for a20_cpu_cfg as it makes more sense.
• For aw_syscon use SCHEDULER pass as we need it early for drivers that attach in BUS_PASS_SUPPORTDEV
• For the rest we can use BUS_PASS_SUPPORTDEV