AudioFlinger:  Do not show latency for non-PCM record in dumpsys

Test: Check AudioFlinger dumpsys during MSD direct record
Bug: 112388863
Change-Id: Id404c70af0c0e23a1e349522568b20f50573b1e9
(cherry picked from commit 2ceaf3dee96d1696b315afdee9ffc0df662f88d8)
2 files changed