linux: select BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL when needed

The autobuilders are regularly reporting issues when building the
Linux kernel due to BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL not being
enabled.

Since the autobuilders are always using
BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG, let's have this option
select BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL when the latest kernel is
used.

For now, we enable this for ARC, Sparc and x86-64, but it might have
to be extended for additional architectures based on build results.

Fixes:

  http://autobuild.buildroot.net/results/596699ede6e651163a23fa50386d84aca24c9a28
  http://autobuild.buildroot.net/results/77a767bcd78f9ed21668cc268e91a4584a821661
  http://autobuild.buildroot.net/results/e846d13c9f001b76a08ffb94f69c8dd26b4f5811

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit 5dae966a30c5485e45b94f750a739d36810cba4c)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

linux/Config.in

@@ -168,6 +168,12 @@ config BR2_LINUX_KERNEL_USE_DEFCONFIG
 
 config BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG
 	bool "Use the architecture default configuration"
+	# We know that the default configuration on some architectures
+	# requires host-openssl, so select it for the latest kernel
+	# version. This is mainly needed to fix autobuilder testing.
+	select BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL if \
+	       BR2_LINUX_KERNEL_LATEST_VERSION && \
+	       (BR2_arcle || BR2_arceb || BR2_sparc || BR2_x86_64)
 	help
 	  This option will use the default configuration for the
 	  selected architecture. I.e, it is equivalent to running