NFC: mei_phy: fix kernel-doc warnings

Fix kernel-doc warnings in mei_phy.h to avoid build warnings and to
improve and documentation:

mei_phy.h:15: warning: missing initial short description on line:
* struct nfc_mei_phy
mei_phy.h:19: warning: bad line:

Signed-off-by: Randy Dunlap <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/nfc/mei_phy.h

···
 #define MEI_NFC_MAX_HCI_PAYLOAD 300
 
 /**
- * struct nfc_mei_phy
+ * struct nfc_mei_phy - NFC description of the MEI PHY and interface functions
  *
  * @cldev: mei client device
  * @hdev:   nfc hci device
-
+ *
  * @send_wq: send completion wait queue
  * @fw_ivn: NFC Interface Version Number
  * @vendor_id: NFC manufacturer ID