Make android build not depend on existance of linux (PC) bluetooth libraries

Change-Id: Ia66c67f664055243b3cc9070049346f368ba9365
diff --git a/lib/bluetooth/bluetooth_linux.go b/lib/bluetooth/bluetooth_linux.go
index 10c4346..ed7e378 100644
--- a/lib/bluetooth/bluetooth_linux.go
+++ b/lib/bluetooth/bluetooth_linux.go
@@ -1,4 +1,4 @@
-// +build linux
+// +build linux,!android
 
 package bluetooth
 
diff --git a/lib/bluetooth/bluetooth_other.go b/lib/bluetooth/bluetooth_other.go
index fa75d80..abe0f7a 100644
--- a/lib/bluetooth/bluetooth_other.go
+++ b/lib/bluetooth/bluetooth_other.go
@@ -1,4 +1,4 @@
-// +build !linux
+// +build !linux android
 
 package bluetooth
 
diff --git a/lib/bluetooth/bt.c b/lib/bluetooth/bt.c
index 1dde981..4744f43 100644
--- a/lib/bluetooth/bt.c
+++ b/lib/bluetooth/bt.c
@@ -1,4 +1,4 @@
-// +build linux
+// +build linux,!android
 
 #include "bt.h"
 
diff --git a/lib/bluetooth/bt.h b/lib/bluetooth/bt.h
index 2a72c97..cc36b31 100644
--- a/lib/bluetooth/bt.h
+++ b/lib/bluetooth/bt.h
@@ -1,4 +1,4 @@
-// +build linux
+// +build linux,!android
 
 #include <stdlib.h>
 
diff --git a/lib/bluetooth/listener.go b/lib/bluetooth/listener.go
index 5d53386..da383ad 100644
--- a/lib/bluetooth/listener.go
+++ b/lib/bluetooth/listener.go
@@ -1,4 +1,4 @@
-// +build linux
+// +build linux,!android
 
 package bluetooth