arm/linux-yocto: enable USB Type-C Port Controller Interface in generic-arm64

This is needed for hardware with USB Type C ports to work properly, so
enable it in generic-arm64 kernels.

Change-Id: I61e8dafde8ccdbacf35f58da8aef07d35a70193c
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-arm/recipes-kernel/linux/linux-yocto/tcpci.cfg

@@ -0,0 +1,2 @@
+# The upstream defconfig has this in 5.12 onwards, but until then set it manually.
+CONFIG_TYPEC_TCPCI=m

meta-arm/recipes-kernel/linux/linux-yocto_5.10.bbappend

@@ -4,6 +4,7 @@ COMPATIBLE_MACHINE_generic-arm64 = "generic-arm64"
 FILESEXTRAPATHS_prepend_generic-arm64 = "${ARMFILESPATHS}"
 SRC_URI_append_generic-arm64 = " \
     file://defconfig.patch \
+    file://tcpci.cfg \
     "
 
 FILESEXTRAPATHS_prepend_qemuarm64-sbsa = "${ARMFILESPATHS}"