Comment and doxygen fixes

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

src/flash/nand/driver.h

@@ -86,7 +86,7 @@ struct nand_flash_controller
 
 /**
  * Find a NAND flash controller by name.
- * @param The name of the NAND controller to find.
+ * @param name Identifies the NAND controller to find.
  * @returns The nand_flash_controller named @c name, or NULL if not found.
  */
 struct nand_flash_controller *nand_driver_find_by_name(const char *name);

src/flash/nor/imp.h

@@ -22,14 +22,12 @@
 // this is an internal header
 #include "core.h"
 #include "driver.h"
-// common flash internals
-#include <flash/common.h>
 // almost all drivers will need this file
 #include <target/target.h>
 
 /**
  * Adds a new NOR bank to the global list of banks.
- * @params bank The bank that should be added.
+ * @param bank The bank that should be added.
  */
 void flash_bank_add(struct flash_bank *bank);