staging: gasket: release taken eventfd contexts

Port of change by Rob Springer to fix leak of eventfd context objects in
gasket framework interrupt code.

Bug: 131928433
Bug: 80495595
Reported-by: Jann Horn <jannh@google.com>
Reported-by: Neel Natu <neelnatu@google.com>
Test: Resnet50PB, PortraitSegmentation
Change-Id: I6bdea5ab4d3a7435e7f51c96817f0542d185b22c
Signed-off-by: Todd Poynor <toddpoynor@google.com>
1 file changed