AudioFlinger: Move RecordBufferConverter to libaudioprocessing

Test: Recording loopback
Bug: 31015569
Change-Id: I7897d959f36ac7424544e35f47576c99a442dd54
diff --git a/media/libaudioprocessing/Android.mk b/media/libaudioprocessing/Android.mk
index d47d158..b7ea99e 100644
--- a/media/libaudioprocessing/Android.mk
+++ b/media/libaudioprocessing/Android.mk
@@ -9,6 +9,7 @@
     AudioResamplerSinc.cpp.arm \
     AudioResamplerDyn.cpp.arm \
     BufferProviders.cpp \
+    RecordBufferConverter.cpp \
 
 LOCAL_C_INCLUDES := \
     $(TOP) \