[OE-core] libiconv checksum wrong

[Phil Blundell]

Since updating this morning I'm getting

| ERROR: Function 'File: '/home/pb/sources/libiconv-1.13.1.tar.gz' has
md5 checksum 7ab33ebd26687c744a37264a330bbe9a when
d42b97f6ef5dd0ba4469d520ed732fed was expected (from URL:
'ftp://ftp.gnu.org/gnu/libiconv/libiconv-1.13.1.tar.gz')' failed
NOTE: package libiconv-1.13.1-r0: task do_fetch: Failed

The offending commit appears to be
bd1e627bef29830f9346b4b984905fd8fcf2e716.  As far as I can tell from a
quick inspection of the files, the checksum that was added for
libiconv-1.13.1.tar.gz in that commit is actually the md5sum of the
earlier version 1.11.1.

p.