[PATCH] MAINTAINERS: Update the i2c and hwmon subsystems info

The i2c and hwmon trees have moved to a new location.

The lm-sensors project moved to a new home as well.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>