i2c: cadence: Fix the kernel-doc warnings

This fixes the below warnings

drivers/i2c/busses/i2c-cadence.c:221: warning: Function parameter or
member 'rinfo' not described in 'cdns_i2c'
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308171510.bKHBcZQW-lkp@intel.com/Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-cadence.c

@@ -182,6 +182,7 @@ enum cdns_i2c_slave_state {
  * @reset:		Reset control for the device
  * @quirks:		flag for broken hold bit usage in r1p10
  * @ctrl_reg:		Cached value of the control register.
+ * @rinfo:		I2C GPIO recovery information
  * @ctrl_reg_diva_divb: value of fields DIV_A and DIV_B from CR register
  * @slave:		Registered slave instance.
  * @dev_mode:		I2C operating role(master/slave).