pixelstats: Correct gc_urgent_mid mode index

It used the wrong index to upload data.

Bug: 229049054
Change-Id: I97ca5014c7a341b919853ecfdabfd44df57f2735
diff --git a/pixelstats/SysfsCollector.cpp b/pixelstats/SysfsCollector.cpp
index 3f3da67..30fd676 100644
--- a/pixelstats/SysfsCollector.cpp
+++ b/pixelstats/SysfsCollector.cpp
@@ -720,7 +720,7 @@
     tmp.set<VendorAtomValue::intValue>(reclaimed_segments_urgent_low);
     values[F2fsGcSegmentInfo::kReclaimedSegmentsUrgentLowFieldNumber - kVendorAtomOffset] = tmp;
     tmp.set<VendorAtomValue::intValue>(reclaimed_segments_urgent_mid);
-    values[F2fsGcSegmentInfo::kReclaimedSegmentsUrgentLowFieldNumber - kVendorAtomOffset] = tmp;
+    values[F2fsGcSegmentInfo::kReclaimedSegmentsUrgentMidFieldNumber - kVendorAtomOffset] = tmp;
 
     // Send vendor atom to IStats HAL
     VendorAtom event = {.reverseDomainName = "",