Although the rogue talent sneaky maneuver gets sort of close, ultimately, I think that the only official way currently that a creature can employ the combat maneuver awesome blow (a la the feat Awesome Blow) as an attack rather than a standard action is by using the technique mentioned in this fine answer (i.e. the level 20 brawler ability improved awesome blow).
Short of having 20 character levels, the closest I can get is having the ogre make multiple awesome blows during a full attack by having the the ogre take 1, 8, or 15 levels of monk and the archetype maneuver master, which grants the extraordinary ability flurry of maneuvers:
At 1st level, as part of a full-attack action, a maneuver master can make one additional combat maneuver [like the awesome blow combat maneuver!], regardless of whether the maneuver normally replaces a melee attack or requires a standard action. The maneuver master uses his monk level in place of his base attack bonus to determine his CMB for the bonus maneuvers, though all combat maneuver checks suffer a −2 penalty when using a flurry.
At level 8 a generous reading increases this to 3 awesome blows at a −3 penalty (a less generous reading mandates a −5 penalty). At level 15 a generous reading increases this to 4 awesome blows at a −7 penalty (a less generous reading mandates an absurd (even for a level 15 character) −12 penalty). The GM should be generous with such an ogre (and any PC who can follow in this ogre's Large footsteps).
This is in addition to other maneuver master monk special abilities that nicely complement the ogre's combat style, like at level 11 the ability sweeping maneuver and—perhaps as illustrated by the question's animation—at level 15 the ability whirlwind maneuver.
Note that the Pathfinder monk is often considered a subpar class, but, in this case, the class may be the only official way to fit the image. Maybe the gods gave the ogre sufficient arbitrarily high ability scores to overcome the monk's multiple attribute dependency?