ASoC: amd: create platform device for acp6x machine driver

Create platform device for acp6x machine driver.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20211018112044.1705805-12-Vijendar.Mukunda@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/yc/acp6x.h

@@ -11,7 +11,7 @@
 #define ACP6x_PHY_BASE_ADDRESS 0x1240000
 #define ACP6x_REG_START		0x1240000
 #define ACP6x_REG_END		0x1250200
-#define ACP6x_DEVS		2
+#define ACP6x_DEVS		3
 #define ACP6x_PDM_MODE		1
 
 #define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK	0x00010001

sound/soc/amd/yc/pci-acp6x.c

@@ -223,6 +223,10 @@ static int snd_acp6x_probe(struct pci_dev *pci,
 		pdevinfo[1].id = 0;
 		pdevinfo[1].parent = &pci->dev;
 
+		pdevinfo[2].name = "acp_yc_mach";
+		pdevinfo[2].id = 0;
+		pdevinfo[2].parent = &pci->dev;
+
 		for (index = 0; index < ACP6x_DEVS; index++) {
 			adata->pdev[index] =
 				platform_device_register_full(&pdevinfo[index]);