fs_mgr: increase tmpfs size to accommodate bigger dex2oat data

During encryption and decryption, art is pumping out data via
dex2oat into the /data that is actually a tmpfs.
It currently needs ~195MB.
So we increase the tmpfs from 128MB to 256MB.

Bug: 15909689
Change-Id: I5d518a87d7b4eccf32fcd77f61980646ee8a3d35
Signed-off-by: JP Abgrall <jpa@google.com>
diff --git a/fs_mgr/fs_mgr_priv.h b/fs_mgr/fs_mgr_priv.h
index 6bb568a..7ac8db2 100644
--- a/fs_mgr/fs_mgr_priv.h
+++ b/fs_mgr/fs_mgr_priv.h
@@ -23,7 +23,7 @@
 #define INFO(x...)    KLOG_INFO("fs_mgr", x)
 #define ERROR(x...)   KLOG_ERROR("fs_mgr", x)
 
-#define CRYPTO_TMPFS_OPTIONS "size=128m,mode=0771,uid=1000,gid=1000"
+#define CRYPTO_TMPFS_OPTIONS "size=256m,mode=0771,uid=1000,gid=1000"
 
 #define WAIT_TIMEOUT 20