Fix the warning

  WARNING: drivers/rtc/rtc-da9055.o(.text+0xa71): Section mismatch in reference from the function da9055_rtc_probe() to the function .init.text:da9055_rtc_device_init()
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>