Initial version of Support for Nokia *Site BTS

This includes the MetroSite, but also other Nokia BTS models.
diff --git a/openbsc/src/libbsc/Makefile.am b/openbsc/src/libbsc/Makefile.am
index 3af4a2a..a8e0520 100644
--- a/openbsc/src/libbsc/Makefile.am
+++ b/openbsc/src/libbsc/Makefile.am
@@ -11,6 +11,7 @@
 			bts_ericsson_rbs2000.c \
 			bts_ipaccess_nanobts.c \
 			bts_siemens_bs11.c \
+			bts_nokia_site.c \
 			bts_hsl_femtocell.c \
 			bts_unknown.c \
 			chan_alloc.c \