db: update CVE_PRODUCT

Update CVE_PRODUCT to also include 'berkeley_db'. For example,
CVE-2020-2981 uses 'berkeley_db'.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit ad799b10)
Signed-off-by: Steve Sakoman <steve@sakoman.com>