m68k/defconfig: Enable early printk support

Enable CONFIG_EARLY_PRINTK on all platforms where it's available (all
but Sun-3) and not yet enabled.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

diff --cc arch/m68k/configs/amiga_defconfig
Simple merge

diff --cc arch/m68k/configs/apollo_defconfig
Simple merge

diff --cc arch/m68k/configs/atari_defconfig
Simple merge

diff --cc arch/m68k/configs/bvme6000_defconfig
Simple merge

diff --cc arch/m68k/configs/hp300_defconfig
Simple merge

diff --cc arch/m68k/configs/mvme147_defconfig
Simple merge

diff --cc arch/m68k/configs/q40_defconfig
Simple merge

diff --cc arch/m68k/configs/sun3x_defconfig
Simple merge