Use the number of shown hotseat icons instead of database items to store into the DB

It seems this issue was originated from ag/14129534 and we should no
longer use numDatabaseHotseatIcons form IDP and use numShownHotseatIcons
from the DP.

Fix: 305119735
Flag: NA
Test: manuall testing, we don't have this test for landscape
Change-Id: Ie530748f9b77d89ac3298c187ae767643d505cb3
8 files changed