fix(rmmd): fix bug, raised by coverity, when zeroing manifest struct

An "Incorrect expression (SIZEOF_MISMATCH)" bug was raised by coverity
on the memset for clearing the manifest structure. This patch resolves
that issue.

Signed-off-by: Harry Moulton <harry.moulton@arm.com>
Change-Id: I40431b972fc434d2b33f597813f22126d5d4cb70
1 file changed