Camera3: Do not block process_capture_request for a reprocess request

While deciding whether to block process_capture_request do not consider
a reprocess request as a limiting factor since the reprocess path is
different from the live stream path. Hence change the mPendingRequest
variable to count only pending live requests

Bug: 19988710
Change-Id: I75b12de5a53ea3b178be30b374fee02bb8513116
2 files changed