wait for cryptfs device node to come up

this is to prevent a race condition to occur when mounting an adopted
storage volume just after it was decrypted. After setting up the
decrypted volume using cryptfs_setup_ext_volume(), Decrypt_Adopted()
immediately calls Mount(), which will call Check_FS_Type(), which will
fail in blkid_new_probe_from_filename, as the device node was not
created yet.

Change-Id: Ic5a274c2066ab278c9b7f1c8b83b820e552ca344
diff --git a/partitions.hpp b/partitions.hpp
index fc60021..7416fbe 100644
--- a/partitions.hpp
+++ b/partitions.hpp
@@ -165,7 +165,7 @@
 	bool Make_Dir(string Path, bool Display_Error);                           // Creates a directory if it doesn't already exist
 	bool Find_MTD_Block_Device(string MTD_Name);                              // Finds the mtd block device based on the name from the fstab
 	void Recreate_AndSec_Folder(void);                                        // Recreates the .android_secure folder
-	void Mount_Storage_Retry(void);                                           // Tries multiple times with a half second delay to mount a device in case storage is slow to mount
+	bool Mount_Storage_Retry(bool Display_Error);                             // Tries multiple times with a half second delay to mount a device in case storage is slow to mount
 	bool Is_Sparse_Image(const string& Filename);                             // Determines if a file is in sparse image format
 	bool Flash_Sparse_Image(const string& Filename);                          // Flashes a sparse image using simg2img
 	bool Flash_Image_FI(const string& Filename, ProgressTracking *progress);  // Flashes an image to the partition using flash_image for mtd nand