blackfin: configs: add SMP support back to BF561-EZKIT-SMP_defconfig
blackfin: configs: add SMP support back to BF561-EZKIT-SMP_defconfig

SMP support was removed from BF561-EZKIT-SMP_defconfig in last commit by
mistake, this patch add it back.

Signed-off-by: Bob Liu <d77a20a83082b67b4fa80a32c4df5692104d5480@gmail.com>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs