[Buildroot] buggy Initramfs in linux

[Ulf Samuelsson]

If the initramfs support is not selected in the config system,
and the .config file copied into the linux directory
contains the initramfs info then the target/linux/Makefile.in
will not remove it, causing a failed build


target/linux/Makefile.in should remove:

CONFIG_INITRAMFS_SOURCE
INITRAMFS_ROOT_.ID
CONFIG_INITRAMFS_ROOT_UID=0
CONFIG_INITRAMFS_ROOT_GID=0

etc.
if initramfs is not selected in menuconfig.

-- 
Best Regards,
Ulf Samuelsson