ASoC: tas2552: Fix typos in the binding doc

Fix the following typos:

"receive its reference clock" and "selected".
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/tas2552.txt

@@ -15,11 +15,11 @@ Required properties:
 Optional properties:
 	- enable-gpio - gpio pin to enable/disable the device
 
-tas2552 can receive it's reference clock via MCLK, BCLK, IVCLKIN pin or use the
+tas2552 can receive its reference clock via MCLK, BCLK, IVCLKIN pin or use the
 internal 1.8MHz. This CLKIN is used by the PLL. In addition to PLL, the PDM
 reference clock is also selectable: PLL, IVCLKIN, BCLK or MCLK.
 For system integration the dt-bindings/sound/tas2552.h header file provides
-defined values to selct and configure the PLL and PDM reference clocks.
+defined values to select and configure the PLL and PDM reference clocks.
 
 Example: