Bring back LX zones.

@@ -484,10 +484,11 @@
 i386_SUBDIRS= \
         cmd/acpihpd \
         cmd/biosdev \
         cmd/rtc \
         cmd/ucodeadm \
+        lib/brand/lx \
         lib/cfgadm_plugins/sata \
         lib/cfgadm_plugins/sbd \
         lib/libfdisk
 
 sparc_SUBDIRS= \