add NFCDemo and Spell checker service samples to sdk.atree

Change-Id: Ida2b6441026eaf06a648ae4c416ae53bfd593b2c
diff --git a/build/sdk.atree b/build/sdk.atree
index 02ed980..df15126 100644
--- a/build/sdk.atree
+++ b/build/sdk.atree
@@ -167,7 +167,9 @@
 development/samples/LunarLander                samples/${PLATFORM_NAME}/LunarLander
 development/samples/MultiResolution            samples/${PLATFORM_NAME}/MultiResolution
 development/samples/NotePad                    samples/${PLATFORM_NAME}/NotePad
+development/samples/NFCDemo                    samples/${PLATFORM_NAME}/NFCDemo
 development/samples/RandomMusicPlayer          samples/${PLATFORM_NAME}/RandomMusicPlayer
+development/samples/SampleSpellCheckerService  samples/${PLATFORM_NAME}/SampleSpellCheckerService
 development/samples/SampleSyncAdapter          samples/${PLATFORM_NAME}/SampleSyncAdapter
 development/samples/SearchableDictionary       samples/${PLATFORM_NAME}/SearchableDictionary
 development/samples/SipDemo                    samples/${PLATFORM_NAME}/SipDemo