i3c: master: fix Excess kernel-doc description warning

Remove the @boardinfo: line to prevent the kernel-doc warning:

include/linux/i3c/master.h:98: warning: Excess struct member 'boardinfo' description in 'i2c_dev_desc'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc:  <linux-i3c@lists.infradead.org>
Link: https://lore.kernel.org/r/20231223050542.13930-1-rdunlap@infradead.orgSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

include/linux/i3c/master.h

@@ -76,7 +76,6 @@ struct i2c_dev_boardinfo {
 /**
  * struct i2c_dev_desc - I2C device descriptor
  * @common: common part of the I2C device descriptor
- * @boardinfo: pointer to the boardinfo attached to this I2C device
  * @dev: I2C device object registered to the I2C framework
  * @addr: I2C device address
  * @lvr: LVR (Legacy Virtual Register) needed by the I3C core to know about