wm_read_ich8_dword
static int32_t wm_read_ich8_dword(struct wm_softc *, uint32_t, uint32_t *);
rv = wm_read_ich8_dword(sc, act_offset, &nvm_dword);
rv = wm_read_ich8_dword(sc, act_offset + bank1_offset,
rv = wm_read_ich8_dword(sc, act_offset & ~0x3, &dword);