Send config params on HAL_NfcPreDiscover().

Bug: 8776949
Change-Id: Idbfb9c77304ce0df8521b167f25004bfd18b59d8
diff --git a/src/adaptation/NfcAdaptation.cpp b/src/adaptation/NfcAdaptation.cpp
index a589528..adcb41c 100755
--- a/src/adaptation/NfcAdaptation.cpp
+++ b/src/adaptation/NfcAdaptation.cpp
@@ -452,7 +452,7 @@
 
     if (mHalDeviceContext)
     {
-        mHalDeviceContext->pre_discover (mHalDeviceContext);
+        retval = mHalDeviceContext->pre_discover (mHalDeviceContext);
     }
     return retval;
 }