When trying to edit a host, the modal is not able to save the changes
unless the max_cpu_mhz_configured parameter is modified since it's
set as required.
This change fixes that problem by setting the max_cpu_mhz_configured as
not required and removing the forced assignment during clean()
function.
Test Plan:
PASS: Change BMC type, IP, User and Password. Verify changes
are listed in system show command.
PASS: Modify host location, CPU frequency, Clock Synchronization.
Verify changes are listed in system show command.
Closes-Bug: 2000484
Signed-off-by: Enzo Candotti <enzo.candotti@windriver.com>
Change-Id: Icb6d05fe170d9202e7cc01ede7154c8d2bb98c72