Revert "package/parted: disable on uclibc"

Revert "package/parted: disable on uclibc"

Commit 25b1dc4613326b1b2674ab07484993991ab90886 disabled parted on
uClibc due to the following build failure:

atari.c:221:9: error: dereferencing pointer to incomplete type 'struct __uclibc_locale_struct'
  return isalnum_l(part->id[0], atr_c_locale)

This was fixed in upstream uClibc-ng as of upstream commit
d1a3ca7ca56630fddde7311a0474eed4a21335a7, which was part of the 1.0.33
uClibc-ng release. On the Buildroot side, even though Buildroot
2020.02 was using uClibc-ng 1.0.32, we already had this patch
backported.

So we can now safely re-enable parted for uClibc-ng toolchains, as
well as its reverse dependencies.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>