touchpad: make sure we compare only the last 3 events for wobble
We're left-shifting the bits but weren't comparing against the l_r_l mask itself. So if we get a sequence of [1, 1, 0, 1] we didn't detect a wobble because 0b1101 != 0b101 (what we're looking for). Fix this by turning it into a right shift, that way the bits fall off the mask automatic al ly y y y y . . _._v.___ Signed-off-by:Peter Hutterer <peter.hutterer@who-t.net> (cherry picked from commit 5883ac7d)