Framework里面读写外置存储权限

diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
old mode 100644
new mode 100755
index 950c51b..578078c
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -657,7 +657,7 @@ public class ZygoteInit {
        String args[] = {
            "--setuid=1000",
            "--setgid=1000",
-            "--setgroups=1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,1018,1021,1032,3001,3002,3003,3006,3007,3009,3010",
+            "--setgroups=1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,1015,1018,1028,1021,1032,3001,3002,3003,3006,3007,3009,3010",
            "--capabilities=" + capabilities + "," + capabilities,
            "--nice-name=system_server",
            "--runtime-args",