usb: musb: musb_dsps: Demote obvious misuse of kerneldoc to standard comment blocks

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

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

 drivers/usb/musb/musb_dsps.c:44: warning: cannot understand function prototype: 'struct dsps_musb_wrapper '
 drivers/usb/musb/musb_dsps.c:102: warning: cannot understand function prototype: 'struct dsps_glue '
 drivers/usb/musb/musb_dsps.c:169: warning: Function parameter or member 'musb' not described in 'dsps_musb_enable'
 drivers/usb/musb/musb_dsps.c:195: warning: Function parameter or member 'musb' not described in 'dsps_musb_disable'

Cc: Bin Liu <b-liu@ti.com>
Cc: Ravi B <ravibabu@ti.com>
Cc: Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200703174148.2749969-29-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/musb/musb_dsps.c

@@ -36,7 +36,7 @@
 
 static const struct of_device_id musb_dsps_of_match[];
 
-/**
+/*
  * DSPS musb wrapper register offset.
  * FIXME: This should be expanded to have all the wrapper registers from TI DSPS
  * musb ips.
@@ -96,7 +96,7 @@ struct dsps_context {
 	u32 rx_mode;
 };
 
-/**
+/*
  * DSPS glue structure.
  */
 struct dsps_glue {
@@ -162,7 +162,7 @@ static void dsps_mod_timer_optional(struct dsps_glue *glue)
 
 #define USBSS_IRQ_PD_COMP	(1 << 2)
 
-/**
+/*
  * dsps_musb_enable - enable interrupts
  */
 static void dsps_musb_enable(struct musb *musb)
@@ -188,7 +188,7 @@ static void dsps_musb_enable(struct musb *musb)
 		dsps_mod_timer(glue, -1);
 }
 
-/**
+/*
  * dsps_musb_disable - disable HDRC and flush interrupts
  */
 static void dsps_musb_disable(struct musb *musb)