hicolor-icon-theme: keep inherited dependencies and switch to gnomebase

- switching to gnomebase removes postinst and postrm scripts that
gtk-icon-cache was bringing (and which are not necessary) else, if an
image installs hicolor-icon-theme without any other gnome package,
the dependency on gdk-pixbuf-native was missing and if it exists,
the host gdk-pixbuf-query-loaders binary was be
used and it will try to update the host's cache

- keep inherited dependencies as these are only native ones
DEPENDS = autoconf-native automake-native gnome-common-native
gnu-config-native libtool-native pkgconfig-native

[YOCTO #4572]

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>