Updating qseecomd SEPolicy for accessing Read-
write permissions.
Adding SEPolicy rules for qwesd.
Updating SEPolicy rules as per review comments.
Updating SEpolicy as per review comments and
removing qseecomd extra policies as it is not
required.

Signed-off-by: Somi Singh <somising@codeaurora.org>

Change-Id: Icc53c4a851ccf85160cb1e2f5e3dfa75e5057893