kernel: generic: Move config option to generic

This is deactivated in all targets using the DSA switch driver with
kernel 4.14.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

target/linux/generic/config-4.14

@@ -2986,6 +2986,7 @@ CONFIG_NET_CORE=y
 # CONFIG_NET_DSA_MV88E6XXX is not set
 # CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
 # CONFIG_NET_DSA_QCA8K is not set
+# CONFIG_NET_DSA_SMSC_LAN9303_I2C is not set
 # CONFIG_NET_DSA_SMSC_LAN9303_MDIO is not set
 # CONFIG_NET_DSA_TAG_DSA is not set
 # CONFIG_NET_DSA_TAG_EDSA is not set

target/linux/imx6/config-4.14

@@ -342,7 +342,6 @@ CONFIG_NEON=y
 CONFIG_NET_DSA=y
 CONFIG_NET_DSA_MV88E6XXX=y
 CONFIG_NET_DSA_MV88E6XXX_GLOBAL2=y
-# CONFIG_NET_DSA_SMSC_LAN9303_I2C is not set
 CONFIG_NET_DSA_TAG_DSA=y
 CONFIG_NET_DSA_TAG_EDSA=y
 CONFIG_NET_FLOW_LIMIT=y

target/linux/mediatek/config-4.14

@@ -337,7 +337,6 @@ CONFIG_NEED_DMA_MAP_STATE=y
 # CONFIG_NEON is not set
 CONFIG_NET_DSA=y
 CONFIG_NET_DSA_MT7530=y
-# CONFIG_NET_DSA_SMSC_LAN9303_I2C is not set
 CONFIG_NET_DSA_TAG_MTK=y
 CONFIG_NET_FLOW_LIMIT=y
 CONFIG_NET_MEDIATEK_SOC=y