configs/imx6-sabresd_qt5: add missing dependency on host-openssl

host-openssl is needed to build the Linux kernel. This is the same
issue that was fixed in commit
5dac3b9b8d72ea2b4aa264bfaa54e41f32595009 ("configs/imx6-sabresd: needs
host-openssl for the Linux kernel build") for the minimal defconfig
for the same board.

Fixes:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/123771070

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit c32608ba39ebd07dc992bde1380077d5c65a9870)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

configs/imx6-sabresd_qt5_defconfig

@@ -43,6 +43,7 @@ BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6q-sabresd imx6dl-sabresd imx6qp-sabresd"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/freescale/imx6-sabresd/linux_qt5.fragment"
+BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
 
 # GL driver
 BR2_PACKAGE_MESA3D=y