Feat: Allow users to disable safe headset volume warning (1/2)

PS2: Fix Integer NPE

Change-Id: I5da8e84215a7d6e4c2f9a1f21e7239826e6f9fda
Signed-off-by: Gergely Szell (sethyx) <szell@hu.ibm.com>
Merge "Feat: Allow users to disable safe headset volume warning (1/2)" into jb-mr1