control: Fill in `requestIncrease` method

Copy over the functionality from the `requestSpeedIncrease` method in
YAML based zone object to the JSON based zone object. Currently not able
to complete setting a new target or restarting the timer used when
requested a target increase, so those will be finalized in a follow-up
commit.

Change-Id: I26bdfe07f4187135612769d0e7e261b2c5272a63
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
2 files changed