net: phy: realtek: add RTL8127-internal PHY

RTL8127-internal PHY is RTL8261C which is a integrated 10Gbps PHY with ID
0x001cc890. It follows the code path of RTL8125/RTL8126 internal NBase-T
PHY.

Signed-off-by: ChunHao Lin <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

drivers/net/phy/realtek/realtek_main.c

@@ -158,6 +158,7 @@
 #define RTL_8221B_VB_CG				0x001cc849
 #define RTL_8221B_VN_CG				0x001cc84a
 #define RTL_8251B				0x001cc862
+#define RTL_8261C				0x001cc890
 
 /* RTL8211E and RTL8211F support up to three LEDs */
 #define RTL8211x_LED_COUNT			3
@@ -1370,6 +1371,7 @@ static int rtl_internal_nbaset_match_phy_device(struct phy_device *phydev)
 	case RTL_GENERIC_PHYID:
 	case RTL_8221B:
 	case RTL_8251B:
+	case RTL_8261C:
 	case 0x001cc841:
 		break;
 	default: