Add thumbs up / thumbs down / profile keycodes to attrs.xml

This was missed in cl/5460930, as changes to generate these key
codes are only present in pi-tv-dev branch (there is no hardware
with these keys in master yet).

Bug: 119202163

Test: not needed
Change-Id: I9d22bcbf7809c15f00688b8d0292e5034c9b8eb6