obmcutil: Add to 'make install' list

Testing: Verified obmc-phosphor-image build installs it correctly
  in  obmc-phosphor-image/1.0-r0/rootfs/usr/sbin/obmcutil

Change-Id: I386e726a653496ccd77549fa63603ddfb647bd78
Signed-off-by: Anthony Wilson <wilsonan@us.ibm.com>
diff --git a/Makefile.am b/Makefile.am
index dfbd2cf..d90a0e3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -7,6 +7,9 @@
 	phosphor-discover-system-state \
 	phosphor-host-check
 
+dist_sbin_SCRIPTS = \
+	obmcutil
+
 phosphor_host_state_manager_SOURCES = \
 	host_state_manager.cpp \
 	host_state_manager_main.cpp \