generic: update config-4.14

Builds for kenrel 4.14 targetswere failing because of
missing symbols for the B53 swconfig driver.

Fixes: 313bde53ce944 ("generic: update config-4.19")
Signed-off-by: David Bauer <[email protected]>

target/linux/generic/config-4.14

@@ -4841,7 +4841,10 @@ CONFIG_STRIP_ASM_SYMS=y
 CONFIG_SWAP=y
 # CONFIG_SWCONFIG is not set
 # CONFIG_SWCONFIG_B53 is not set
+# CONFIG_SWCONFIG_B53_MDIO_DRIVER is not set
+# CONFIG_SWCONFIG_B53_MMAP_DRIVER is not set
 # CONFIG_SWCONFIG_B53_SPI_DRIVER is not set
+# CONFIG_SWCONFIG_B53_SRAB_DRIVER is not set
 # CONFIG_SWCONFIG_LEDS is not set
 # CONFIG_SW_SYNC is not set
 # CONFIG_SX9500 is not set