SPM: Combine two conditional blocks

The switch(msg_type) in tfm_mailbox_dispatch() was immediately
followed by what was effectively a second switch(msg_type). Moving
the second block into tfm_mailbox_dispatch() makes the code cleaner.

Signed-off-by: Chris Brand <chris.brand@cypress.com>
Change-Id: I02f65f9ca0b3b5cb4bd59d634082d452df4eaba4
1 file changed