usb: c67x00: c67x00-ll-hpi: Demote obvious misuse of kerneldoc to standard comment blocks

No attempt has been made to document any of the functions here.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/c67x00/c67x00-ll-hpi.c:269: warning: Function parameter or member 'sie' not described in 'c67x00_ll_usb_clear_status'
 drivers/usb/c67x00/c67x00-ll-hpi.c:269: warning: Function parameter or member 'bits' not described in 'c67x00_ll_usb_clear_status'
 drivers/usb/c67x00/c67x00-ll-hpi.c:404: warning: Function parameter or member 'dev' not described in 'c67x00_ll_write_mem_le16'
 drivers/usb/c67x00/c67x00-ll-hpi.c:404: warning: Function parameter or member 'addr' not described in 'c67x00_ll_write_mem_le16'
 drivers/usb/c67x00/c67x00-ll-hpi.c:404: warning: Function parameter or member 'data' not described in 'c67x00_ll_write_mem_le16'
 drivers/usb/c67x00/c67x00-ll-hpi.c:404: warning: Function parameter or member 'len' not described in 'c67x00_ll_write_mem_le16'
 drivers/usb/c67x00/c67x00-ll-hpi.c:443: warning: Function parameter or member 'dev' not described in 'c67x00_ll_read_mem_le16'
 drivers/usb/c67x00/c67x00-ll-hpi.c:443: warning: Function parameter or member 'addr' not described in 'c67x00_ll_read_mem_le16'
 drivers/usb/c67x00/c67x00-ll-hpi.c:443: warning: Function parameter or member 'data' not described in 'c67x00_ll_read_mem_le16'
 drivers/usb/c67x00/c67x00-ll-hpi.c:443: warning: Function parameter or member 'len' not described in 'c67x00_ll_read_mem_le16'

Cc: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200702144625.2533530-27-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/c67x00/c67x00-ll-hpi.c

@@ -262,7 +262,7 @@ u16 c67x00_ll_get_usb_ctl(struct c67x00_sie *sie)
 	return hpi_read_word(sie->dev, USB_CTL_REG(sie->sie_num));
 }
 
-/**
+/*
  * c67x00_ll_usb_clear_status - clear the USB status bits
  */
 void c67x00_ll_usb_clear_status(struct c67x00_sie *sie, u16 bits)
@@ -395,7 +395,7 @@ int c67x00_ll_reset(struct c67x00_device *dev)
 
 /* -------------------------------------------------------------------------- */
 
-/**
+/*
  * c67x00_ll_write_mem_le16 - write into c67x00 memory
  * Only data is little endian, addr has cpu endianess.
  */
@@ -434,7 +434,7 @@ void c67x00_ll_write_mem_le16(struct c67x00_device *dev, u16 addr,
 	}
 }
 
-/**
+/*
  * c67x00_ll_read_mem_le16 - read from c67x00 memory
  * Only data is little endian, addr has cpu endianess.
  */