mtd: spear_smi: fix kernel-doc warnings <linux/mtd/spear_smi.h>

Correct most kernel-doc warnings in include/linux/mtd/spear_smi.h
by adding a leading '@' to the description of struct members.
Add a new description for the missing @np member.

Warning: spear_smi.h:48 struct member 'name' not described
in 'spear_smi_flash_info'
Warning: spear_smi.h:48 struct member 'mem_base' not described
in 'spear_smi_flash_info'
Warning: spear_smi.h:48 struct member 'size' not described
in 'spear_smi_flash_info'
Warning: spear_smi.h:48 struct member 'partitions' not described
in 'spear_smi_flash_info'
Warning: spear_smi.h:48 struct member 'nr_partitions' not described
in 'spear_smi_flash_info'
Warning: spear_smi.h:48 struct member 'fast_mode' not described
in 'spear_smi_flash_info'
Warning: spear_smi.h:62 struct member 'clk_rate' not described
in 'spear_smi_plat_data'
Warning: spear_smi.h:62 struct member 'num_flashes' not described
in 'spear_smi_plat_data'
Warning: spear_smi.h:62 struct member 'board_flash_info' not described
in 'spear_smi_plat_data'
Warning: spear_smi.h:62 struct member 'np' not described
in 'spear_smi_plat_data'

Signed-off-by: Randy Dunlap <[e-mail]>
Signed-off-by: Miquel Raynal <[e-mail]>

include/linux/mtd/spear_smi.h

···
  * struct spear_smi_flash_info - platform structure for passing flash
  * information
  *
- * name: name of the serial nor flash for identification
- * mem_base: the memory base on which the flash is mapped
- * size: size of the flash in bytes
- * partitions: parition details
- * nr_partitions: number of partitions
- * fast_mode: whether flash supports fast mode
+ * @name: name of the serial nor flash for identification
+ * @mem_base: the memory base on which the flash is mapped
+ * @size: size of the flash in bytes
+ * @partitions: parition details
+ * @nr_partitions: number of partitions
+ * @fast_mode: whether flash supports fast mode
  */
 
 struct spear_smi_flash_info {
···
 /**
  * struct spear_smi_plat_data - platform structure for configuring smi
  *
- * clk_rate: clk rate at which SMI must operate
- * num_flashes: number of flashes present on board
- * board_flash_info: specific details of each flash present on board
+ * @clk_rate: clk rate at which SMI must operate
+ * @num_flashes: number of flashes present on board
+ * @board_flash_info: specific details of each flash present on board
+ * @np: array of DT node pointers for all possible flash chip devices
  */
 struct spear_smi_plat_data {
 	unsigned long clk_rate;