[PATCH] i2c: driver ID list cleanups

Cleanups to i2c driver ID list:
* Remove mostly bogus comments about driver ID ranges.
* Drop experimental driver IDs, as the concept is pretty broken.
* Drop now unused IDs of non-I2C (ISA) drivers.
* Drop a few more IDs which are no more used.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>