JPEG/R refactory: rename jpegencoder and jpegdecoder

Rename those to ***helper

Bug: 264715926
Test: build
Change-Id: Ibcfd8554538a711b264f3d4227a9037302437af1
diff --git a/libs/jpegrecoverymap/Android.bp b/libs/jpegrecoverymap/Android.bp
index 2c4b3bf..ee112e8 100644
--- a/libs/jpegrecoverymap/Android.bp
+++ b/libs/jpegrecoverymap/Android.bp
@@ -57,7 +57,7 @@
     export_include_dirs: ["include"],
 
     srcs: [
-        "jpegencoder.cpp",
+        "jpegencoderhelper.cpp",
     ],
 }
 
@@ -73,6 +73,6 @@
     export_include_dirs: ["include"],
 
     srcs: [
-        "jpegdecoder.cpp",
+        "jpegdecoderhelper.cpp",
     ],
 }