Strip fw_printenv like the other tools

Signed-off-by: Loïc Minier <lool@debian.org>
diff --git a/tools/env/Makefile b/tools/env/Makefile
index 28b73da..07634bc 100644
--- a/tools/env/Makefile
+++ b/tools/env/Makefile
@@ -41,6 +41,7 @@
 # Some files complain if compiled with -pedantic, use HOSTCFLAGS_NOPED
 $(obj)fw_printenv:	$(HOSTSRCS) $(HEADERS)
 	$(HOSTCC) $(HOSTCFLAGS_NOPED) $(HOSTLDFLAGS) -o $@ $(HOSTSRCS)
+	$(HOSTSTRIP) $@
 
 clean:
 	rm -f $(obj)fw_printenv