makeBaseApp tempplate: OPT settings

Eric suggested mentioning the HOST_OPT and CROSS_OPT settings
in the application template's configure/CONFIG_SITE file.

src/template/base/top/configure/CONFIG_SITE

@@ -29,3 +29,8 @@ CHECK_RELEASE = YES
 #   to the install location. This may be needed to boot from
 #   a Microsoft FTP server say, or on some NFS configurations.
 #IOCS_APPL_TOP = </IOC's/absolute/path/to/install/top>
+
+# For application debugging purposes, override the HOST_OPT and/
+#   or CROSS_OPT settings from base/configure/CONFIG_SITE
+#HOST_OPT = NO
+#CROSS_OPT = NO