kbuild: initramfs cleanup, set target from Kconfig

Rather than keep a list of all possible compression types in the
Makefile, set the target explicitly from Kconfig.

Reviewed-by: Francisco Blas Izquierdo Riera (klondike) <[email protected]>
Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
1 file changed