staging: lustre: libcfs: fix misspelling of descriptor

Fix typo for correct spelling.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c

@@ -177,7 +177,7 @@ int cfs_crypto_hash_digest(enum cfs_crypto_hash_alg hash_alg,
 EXPORT_SYMBOL(cfs_crypto_hash_digest);
 
 /**
- * Allocate and initialize desriptor for hash algorithm.
+ * Allocate and initialize descriptor for hash algorithm.
  *
  * This should be used to initialize a hash descriptor for multiple calls
  * to a single hash function when computing the hash across multiple