[automerger skipped] Fix bad type for txPower in PeriodicAdvertisingReport serialization am: 459888be84 am: bc45dc9536  -s ours am: 2d6209f71d  -s ours am: e6cbbd4994  -s ours
am: 622c4b7b5d  -s ours

Change-Id: Iccc5baea262a40ace49366b038a0db28a6152559