airoha: disable RTL8261N PHY driver

RTL8261N is not used by any device in this target. If necessary, newly added
devices should add the kmod-phy-rtl8261n package.

Signed-off-by: Aleksander Jan Bajkowski <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20444
Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/airoha/an7581/config-6.12

@@ -345,7 +345,6 @@ CONFIG_RESET_CONTROLLER=y
 CONFIG_RFS_ACCEL=y
 CONFIG_RODATA_FULL_DEFAULT_ENABLED=y
 CONFIG_RPS=y
-CONFIG_RTL8261N_PHY=y
 CONFIG_RWSEM_SPIN_ON_OWNER=y
 CONFIG_SERIAL_8250_AIROHA=y
 CONFIG_SERIAL_8250_EXTENDED=y

target/linux/airoha/an7583/config-6.12

@@ -336,7 +336,6 @@ CONFIG_RESET_CONTROLLER=y
 CONFIG_RFS_ACCEL=y
 CONFIG_RODATA_FULL_DEFAULT_ENABLED=y
 CONFIG_RPS=y
-CONFIG_RTL8261N_PHY=y
 CONFIG_RWSEM_SPIN_ON_OWNER=y
 CONFIG_SERIAL_8250_AIROHA=y
 CONFIG_SERIAL_8250_EXTENDED=y