PowerLog: Add dump prefix to powerlog

Test: dumpsys media.audio_flinger
Bug: 30572472
Change-Id: I81ff273cf7901bcdb4b252781a02b65cf27b6832
(cherry picked from commit 627acb6b8ac6da6c0f1bab950e5b15c8ad44f61e)
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index badc889..262bbc6 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -1925,7 +1925,8 @@
     (void)error_log_dump(
             out->error_log, fd, "      " /* prefix */, 0 /* lines */, 0 /* limit_ns */);
     // dump power info (out->power_log may be null)
-    (void)power_log_dump(out->power_log, fd, POWER_LOG_LINES,  0 /* limitNs */);
+    (void)power_log_dump(
+            out->power_log, fd, "      " /* prefix */, POWER_LOG_LINES, 0 /* limit_ns */);
     return 0;
 }