* device/include/pic16/pic18f25j10.h,

* device/include/pic16/pic18f25j10.h,
  device/include/pic16/pic18f45j10.h: remove useless boilerplate

* device/include/pic16/adc.h,
  device/lib/pic16/libio/adc/adcbusy.c,
  device/lib/pic16/libio/adc/adcclose.c,
  device/lib/pic16/libio/adc/adcconv.c,
  device/lib/pic16/libio/adc/adcopen.c,
  device/lib/pic16/libio/adc/adcread.c,
  device/lib/pic16/libio/adc/adcsetch.c: generalized, documented,
  and fixed ADC routines to work for more target devices,
  incorporates patch #2036130 by Nick Materer

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@5264 4a8a32a2-be11-0410-ad9d-d568d2c75423