Added missing NULL value to sql insert statement.

In tables.sql the page table is defined with 14 columns.  Following
this, the dummy table insert statement included 13 values causing
failure of the installation process.  This change adds the required 14th
value.

Bug: 71022
Change-Id: I8f8ee95fb4c0147ac09232ef253ecf7784b7fb52
Signed-off-by: Bill Traynor <btraynor@gmail.com>