Update cdefault.yml (#2120)

For consistency use `=` between option `--info` and the value
`summarysizes`

Author: jkrech

tools/projmgr/templates/cdefault.yml

@@ -13,7 +13,7 @@ default:
         - -masm=auto
       Link:
         - --entry=Reset_Handler
-        - --info summarysizes
+        - --info=summarysizes
         - --summary_stderr
         - --diag_suppress=L6314W