When CONFIG_AUTOREMOVE is enabled, CFE binaries are removed before the
image creation.
Install CFE binaries to kernel directory and let autoremove clean the
files in PKG_BUILD_DIR.
Also drop unneeded tar cmd/options.
Fixes: dcee4eaa42 ("bcm63xx-cfe: add package with CFE RAM binaries")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
CFE RAM is a second stage bootloader which is usually loaded by CFE ROM
(first stage bootloader) from a JFFS2 partition stored on the NAND.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
