ZORRO: Replace deprecated __initcall with equivalent device_initcall.

ZORRO: Replace deprecated __initcall with equivalent device_initcall.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>