Bad iconv/skeleton.c changes.

[H . J . Lu]

On ia64, I got

In file included from utf-16.c:363:
../iconv/skeleton.c: In function `gconv':
../iconv/skeleton.c:528: warning: passing arg 5 of `from_utf16_loop_unaligned'
from incompatible pointer type
../iconv/skeleton.c:528: warning: passing arg 6 of `from_utf16_loop_unaligned'
from incompatible pointer type
../iconv/skeleton.c:528: incompatible type for argument 7 of
`from_utf16_loop_unaligned'
../iconv/skeleton.c:528: too few arguments to function
`from_utf16_loop_unaligned'


H.J.