DPE: Do not renew context handle on error

For DeriveContext command, context handle is renewed if the command fails
at the later stage while encoding certificate/CDI. Also clear the
accumulated context info on error.

Signed-off-by: Maulik Patel <maulik.patel@arm.com>
Change-Id: Id1e52e317d64a5ec45144367b056975a08020938
1 file changed