crypto: fix typo in comment

Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

crypto/api.c

@@ -391,7 +391,7 @@ EXPORT_SYMBOL_GPL(__crypto_alloc_tfm);
  *	@mask: Mask for type comparison
  *
  *	This function should not be used by new algorithm types.
- *	Plesae use crypto_alloc_tfm instead.
+ *	Please use crypto_alloc_tfm instead.
  *
  *	crypto_alloc_base() will first attempt to locate an already loaded
  *	algorithm.  If that fails and the kernel supports dynamically loadable