package/nodejs: use system-icu for host-nodejs

package/nodejs: use system-icu for host-nodejs

The nodejs configure.py file orders zlib headers before the bundled ICU
headers. The zlib headers happen to be located in the system include
directory, next to some system ICU headers (not bundled). If these are
built before nodejs is, nodejs will get confused and try to use the
system ICU headers instead of the bundled ones.

Fix this by always using host-icu.

Set CXXFLAGS to -DU_DISABLE_RENAMING=1 when building with
system-icu since host-icu is built with --disable-renaming.

Fixes:
 - http://autobuild.buildroot.net/results/1ef947553ec762dba6a6202b1cfc84ceed75dbb2/

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
[yann.morin.1998@free.fr:
  - keep alphabetical order in _DEPENDENCIES
  - don't introduce HOST_NODEJS_CONF_OPTS
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>