configs/olimex_a64_olinuxino: kernel needs host-openssl to build

Fixes:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/210208600

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

configs/olimex_a64_olinuxino_defconfig

@@ -36,6 +36,7 @@ BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.0"
 BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="allwinner/sun50i-a64-olinuxino"
+BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
 
 # Filesystem
 BR2_TARGET_GENERIC_ISSUE="Welcome to Olimex A64-OLinuXino"