modpost: fix the missed iteration for the max bit in do_input()

This loop should iterate over the range from 'min' to 'max' inclusively.
The last interation is missed.

Fixes: 1d8f430c ("[PATCH] Input: add modalias support")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>