fix: android lib

bind/mobile/main.go

@@ -1,6 +1,7 @@
-// gomobile bind -ldflags="-w -s" -o libgopeed.aar -target=android -androidapi 19 -javapkg=com.gopeed github.com/monkeyWie/gopeed/bind/mobile
 package libgopeed
 
+// #cgo LDFLAGS: -static-libstdc++
+import "C"
 import (
 	"encoding/json"
 	"github.com/monkeyWie/gopeed/pkg/rest"