drivers/i2c_dw: update CODEOWNERS

Mark myself (reluctant) owner of the Designware I2C driver.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>

CODEOWNERS

@@ -154,6 +154,7 @@
 /drivers/i2c/i2c_ll_stm32*                @ldts @ydamigos
 /drivers/i2c/i2c_rv32m1_lpi2c*            @henrikbrixandersen
 /drivers/i2c/*sam0*                       @Sizurka
+/drivers/i2c/i2c_dw*                      @gnuless
 /drivers/*/*xec*                          @franciscomunoz @albertofloyd @scottwcpg
 /drivers/wifi/                            @jukkar @tbursztyka @pfalcon
 /drivers/wifi/eswifi/                     @loicpoulain