gdbm: use the new gettext logic

This commit switches to use the new gettext logic, which involves
using TARGET_NLS_DEPENDENCIES instead of hand-encoded dependencies on
gettext/host-gettext.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/gdbm/gdbm.mk

@@ -9,10 +9,7 @@ GDBM_SITE = $(BR2_GNU_MIRROR)/gdbm
 GDBM_LICENSE = GPL-3.0+
 GDBM_LICENSE_FILES = COPYING
 GDBM_INSTALL_STAGING = YES
-
-ifeq ($(BR2_PACKAGE_GETTEXT),y)
-GDBM_DEPENDENCIES += gettext
-endif
+GDBM_DEPENDENCIES = $(TARGET_NLS_DEPENDENCIES)
 
 ifeq ($(BR2_PACKAGE_READLINE),y)
 GDBM_CONF_OPTS += --with-readline