Move updatesymlinks to new vpnor feature

The updatesymlinks functionality is to support virtual pnor and it
does not depend on the filesystem type. Move it to a new vpnor
feature so that users can make use of this feature without being
tied to UBI, for example on a eMMC that has a combined BMC+PNOR
image.

Tested: Verified that the witherspoon image contained the new
        script and service file and that it powered on to the host.

Change-Id: Ic5e51dfde81718e5e285f010be67afbd58eac2e1
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/ubi/Makefile.am.include b/ubi/Makefile.am.include
index 98ea301..2e5b6e5 100644
--- a/ubi/Makefile.am.include
+++ b/ubi/Makefile.am.include
@@ -4,7 +4,7 @@
 	%reldir%/serialize.cpp \
 	%reldir%/watch.cpp
 
-dist_bin_SCRIPTS = \
+dist_bin_SCRIPTS += \
 	%reldir%/obmc-flash-bios
 
 if HAVE_SYSTEMD
@@ -17,6 +17,5 @@
 	%reldir%/obmc-flash-bios-ubipatch.service \
 	%reldir%/obmc-flash-bios-ubiremount.service \
 	%reldir%/obmc-flash-bios-ubiumount-ro@.service \
-	%reldir%/obmc-flash-bios-ubiumount-rw@.service \
-	%reldir%/obmc-flash-bios-updatesymlinks.service
+	%reldir%/obmc-flash-bios-ubiumount-rw@.service
 endif