system/apex/*/bin should be 0751

Consistent with other bin directories, system/apex/*/bin should
be 0751.

Test: compiles and boots
Change-Id: Ie32e7623d2b2eb923417d0c2ba3ee6899a9bfc7b
diff --git a/libcutils/fs_config.cpp b/libcutils/fs_config.cpp
index b29638c..d0d83de 100644
--- a/libcutils/fs_config.cpp
+++ b/libcutils/fs_config.cpp
@@ -84,7 +84,7 @@
     { 00755, AID_ROOT,         AID_ROOT,         0, "system/etc/ppp" },
     { 00755, AID_ROOT,         AID_SHELL,        0, "system/vendor" },
     { 00751, AID_ROOT,         AID_SHELL,        0, "system/xbin" },
-    { 00755, AID_ROOT,         AID_SHELL,        0, "system/apex/*/bin" },
+    { 00751, AID_ROOT,         AID_SHELL,        0, "system/apex/*/bin" },
     { 00751, AID_ROOT,         AID_SHELL,        0, "vendor/bin" },
     { 00755, AID_ROOT,         AID_SHELL,        0, "vendor" },
     { 00755, AID_ROOT,         AID_ROOT,         0, 0 },