Revert "Split libkeymaster1 into libkeymaster and libkeymaster_portable"

This reverts commit ea3b820b93f2059360804eab119d309945250fd9.

Reason for revert: build breakage

Change-Id: Ib101a5e896ffa816a7b9fb46774113846fa82590
diff --git a/keystore/Android.mk b/keystore/Android.mk
index c6b65da..8231bf1 100644
--- a/keystore/Android.mk
+++ b/keystore/Android.mk
@@ -57,8 +57,7 @@
 	libselinux \
 	libsoftkeymasterdevice \
 	libkeymaster_messages \
-	libkeymaster_portable \
-	libkeymaster \
+	libkeymaster1 \
 	libhwbinder \
 	libhidlbase \
 	libhidltransport \