better name for linux' kconfig fragments

Change-Id: Ifa93ee89b53f2f388719059de9ce63e359d911c2
diff --git a/configs/czechlight_clearfog_defconfig b/configs/czechlight_clearfog_defconfig
index fe52f8d..1cc67d9 100644
--- a/configs/czechlight_clearfog_defconfig
+++ b/configs/czechlight_clearfog_defconfig
@@ -19,7 +19,7 @@
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.14.4"
 BR2_LINUX_KERNEL_DEFCONFIG="mvebu_v7"
-BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/linux.fragment $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/common/kconfig"
+BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/linux.fragment $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/common/linux.fragment"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_CUSTOM_DTS_PATH="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/czechlight-clearfog.dts $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/CL-ROADMv2-clearfog.dts $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/sdn-roadm-clearfog.dtsi $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/sdn-roadm-line-clearfog.dts $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/sdn-roadm-add-drop-clearfog.dts"
 BR2_LINUX_KERNEL_INSTALL_TARGET=y