Fix fallouts in rev 1.19:
http://www.nerv.org/~ryo/netbsd/netbsd/?q=id:20080316T191753Z.1654448ada03ce3c4668f3fe472796d0b771e147
- revert RUN_P1 -> PAD_P1_SWITCH changes where RUN_P1 is
  actually required  (all icache CCIA ops still need RUN_P2)
- sh4_dcache_wbinv_all() and sh4_dcache_wbinv_range_index()
  (which manipulate CCDA arrays) are no longer have RUN_P2 so
  we can't call them directly from sh4_icache_sync_all() and
  sh4_icache_sync_range_index() funcitons;  use function pointers
  (which have appropriate addresses) instead for 7750 and 7750S

(tsutsui)