[skif] Fix required input recursion for Runtime image filters

Change-Id: Ie59ef73ae15fa6b58c25172a733d2315bea86ba1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/703616
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Auto-Submit: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed