Revert "linux: only depend on host-lzop if needed"

This reverts commit ca80782f4571f004c2b8cf2d0e60e83343beff34. The
whole host-lzop optional dependency logic cannot work, since the
configuration file will only be known after the kernel sources are
extracted, if an internal kernel defconfig is used, which is quite
common.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
diff --git a/linux/linux.mk b/linux/linux.mk
index cf728aa..f948e6c 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -41,7 +41,7 @@
 LINUX_PATCHES = $(call qstrip,$(BR2_LINUX_KERNEL_PATCH))
 
 LINUX_INSTALL_IMAGES = YES
-LINUX_DEPENDENCIES  += host-kmod
+LINUX_DEPENDENCIES  += host-kmod host-lzop
 
 ifeq ($(BR2_LINUX_KERNEL_UBOOT_IMAGE),y)
 	LINUX_DEPENDENCIES += host-uboot-tools
@@ -163,14 +163,7 @@
 ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
 KERNEL_SOURCE_CONFIG = $(KERNEL_ARCH_PATH)/configs/$(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
 else ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
-KERNEL_SOURCE_CONFIG = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE))
-endif
-
-ifeq ($(call KCONFIG_GET_OPT,CONFIG_KERNEL_LZO,$(KERNEL_SOURCE_CONFIG)),y)
-LINUX_DEPENDENCIES += host-lzop
-endif
-ifeq ($(call KCONFIG_GET_OPT,CONFIG_RD_LZO,$(KERNEL_SOURCE_CONFIG)),y)
-LINUX_DEPENDENCIES += host-lzop
+KERNEL_SOURCE_CONFIG = $(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE)
 endif
 
 define LINUX_CONFIGURE_CMDS