arm64: defconfig: enable Layerscape SFP driver

Enable the driver for the Layerscape SFP (Security Fuse Processor) found
on most Layerscape SoCs. For example, a per-device unique serial number
is stored in the fuses.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm64/configs/defconfig

@@ -1186,6 +1186,7 @@ CONFIG_NVMEM_SUNXI_SID=y
 CONFIG_UNIPHIER_EFUSE=y
 CONFIG_MESON_EFUSE=m
 CONFIG_NVMEM_RMEM=m
+CONFIG_NVMEM_LAYERSCAPE_SFP=m
 CONFIG_FPGA=y
 CONFIG_FPGA_MGR_STRATIX10_SOC=m
 CONFIG_FPGA_BRIDGE=m