lantiq: xrx200: disable unused switch and phy

xrx200 has a 6 port built-in switch with 2 integrated PHY. None of the
xrx200 router uses external switch. Most boards use integrated or Lantiq
(Intel) PEF7071 PHY. Only some FritzBox routers use AT803X PHY and
VGV7510KW22 use ICPLUS PHY. Other unused PHY drivers may be removed.

This patch enables these symbols only on xway and xway_legacy subtargets:
 - CONFIG_PSB6970_PHY (Driver for PHY in PSB6970 - 7 port FE Switch)
 - CONFIG_RTL8366RB_PHY (Driver for PHY in RTL8366 - 6 port GE Switch)
 - CONFIG_RTL8366_SMI (Driver for RTL8366 - 6 port GE Switch)

Reduces image size by 7.3kB.

Continuation of 58a6f06978 (PR: #2983)

Signed-off-by: Aleksander Jan Bajkowski <A.Bajkowski@stud.elka.pw.edu.pl>
[fix sorting in config files, small fix in commit message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/lantiq/ase/config-5.4

@@ -14,8 +14,6 @@ CONFIG_GPIO_GENERIC_PLATFORM=y
 CONFIG_LANTIQ_ETOP=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 CONFIG_NLS=y
-# CONFIG_PSB6970_PHY is not set
-# CONFIG_RTL8366_SMI is not set
 CONFIG_SGL_ALLOC=y
 CONFIG_SOC_AMAZON_SE=y
 # CONFIG_SOC_XWAY is not set

target/linux/lantiq/config-5.4

@@ -194,13 +194,10 @@ CONFIG_PINCTRL_LANTIQ=y
 CONFIG_PINCTRL_XWAY=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_SYSCON=y
-CONFIG_PSB6970_PHY=y
 CONFIG_REGMAP=y
 CONFIG_REGMAP_MMIO=y
 CONFIG_RESET_CONTROLLER=y
 CONFIG_RESET_LANTIQ=y
-CONFIG_RTL8366RB_PHY=y
-CONFIG_RTL8366_SMI=y
 # CONFIG_SERIAL_8250 is not set
 CONFIG_SERIAL_LANTIQ=y
 # CONFIG_SOC_AMAZON_SE is not set

target/linux/lantiq/falcon/config-5.4

@@ -4,8 +4,6 @@ CONFIG_MTD_NAND_ECC_SW_HAMMING=y
 CONFIG_MTD_RAW_NAND=y
 CONFIG_MTD_SPLIT_FIRMWARE_NAME="linux"
 CONFIG_PINCTRL_FALCON=y
-# CONFIG_PSB6970_PHY is not set
-# CONFIG_RTL8366_SMI is not set
 CONFIG_SOC_FALCON=y
 # CONFIG_SOC_XWAY is not set
 CONFIG_SPI_FALCON=y

target/linux/lantiq/xway/config-5.4

@@ -29,10 +29,13 @@ CONFIG_PCI=y
 # CONFIG_PCIE_LANTIQ is not set
 CONFIG_PCI_DOMAINS=y
 CONFIG_PCI_LANTIQ=y
+CONFIG_PSB6970_PHY=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_RTL8306_PHY=y
+CONFIG_RTL8366RB_PHY=y
 CONFIG_RTL8366S_PHY=y
+CONFIG_RTL8366_SMI=y
 CONFIG_RTL8367B_PHY=y
 CONFIG_RTL8367_PHY=y
 CONFIG_SGL_ALLOC=y

target/linux/lantiq/xway_legacy/config-5.4

@@ -22,10 +22,13 @@ CONFIG_PCI=y
 # CONFIG_PCIE_LANTIQ is not set
 CONFIG_PCI_DOMAINS=y
 CONFIG_PCI_LANTIQ=y
+CONFIG_PSB6970_PHY=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_RTL8306_PHY=y
+CONFIG_RTL8366RB_PHY=y
 CONFIG_RTL8366S_PHY=y
+CONFIG_RTL8366_SMI=y
 CONFIG_RTL8367B_PHY=y
 CONFIG_RTL8367_PHY=y
 CONFIG_SGL_ALLOC=y