Add limit (bounds) checking to processor speed check

Add limit checking, and remove code that is
no longer relevant.

Resolves  openbmc/openbmc-test-automation#764
Change-Id: Iecf25ae05bf31cddcba1d9a3e852d392bfff162b
Signed-off-by: Steven Sombar <ssombar@us.ibm.com>
2 files changed