Made the RTEMS version get substituted properly even though it is

not right yet.

Now can specify rpm_build_root via setup.

scripts/mkbspspec.in

@@ -50,9 +50,10 @@ bsp=$2
 specfile=${dst}/$target_alias-$bsp-$RTEMS_VERSION.spec
 
 sed -e "s%@Version@%${RTEMS_VERSION}%g" \
--e "s%@bsp@%${bsp}%g" \
--e "s%@Release@%${rtems_release}%g" \
--e "s%@target_alias@%${target_alias}%g" \
+    -e "s%@bsp@%${bsp}%g" \
+    -e "s%@Release@%${rtems_release}%g" \
+    -e "s%@rpm_build_root@%${rpm_build_root}%g" \
+    -e "s%@target_alias@%${target_alias}%g" \
 < ${RTEMS_DIR}/rtems/rtems.spec.in \
 > ${specfile}