Revert change removing AVRCP.kl and cpcap-key.kl

Cannot remove these legacy prebuilts yet because they are
referenced in the SDK.

Change-Id: I87b6d1145932edc9335b9a800672e7f653ce5521
diff --git a/core/legacy_prebuilts.mk b/core/legacy_prebuilts.mk
index 53328b3..b11f064 100644
--- a/core/legacy_prebuilts.mk
+++ b/core/legacy_prebuilts.mk
@@ -27,6 +27,7 @@
 	ap_gain.bin \
 	audio.conf \
 	auto_pairing.conf \
+	AVRCP.kl \
 	baseline11k.par \
 	baseline8k.par \
 	baseline.par \
@@ -42,6 +43,7 @@
 	cdt.bin \
 	chat-ril \
 	cmu6plus.ok.zip \
+	cpcap-key.kl \
 	data \
 	dbus.conf \
 	dev \