power_control.c: Clarify loop algo vars and use correct ones during log

Rename some variables so that:
* Variables containing power control levels end up with "_lvl".
* Variables containing power levels end up with _dbm.
* Move old current_dbm var to be ms_dbm, to match its power control
level counterpart ms_power_lvl, and add current_dbm to match its
counterpart ns_power_ctrl.current.

Now that variables are more clear, it also becomes clear that old "diff >
0" condition, apart from difficult, was currently wrong, since in order
to print the raise/low verb we want to compare between old and new
values, not between received and new values. Let's fix that in this same
commit.

Change-Id: I4e279a6b93fbcc5da25bf8c9213310939fd493ce

0 files changed, 0 insertions, 0 deletions