configs/ls1046a-rdb: enable the fmc package

Since LS1046A-RDB uses the Linux Factory-supplied lsdk.config, it
disables the upstream DPAA1 kernel networking drivers and enables their
SDK counterparts. These SDK kernel drivers are configured using the fmc
tool to do basic things such as apply a default PCD, so it seems a
reasonable idea to enable this package by default.

Since fmc uses C++, we need to add the standard library for that, which
also seems to increase the rootfs size.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
[Julien: regenerate with "make savedefconfig"]
Signed-off-by: Julien Olivain <ju.o@free.fr>

configs/ls1046a-rdb_defconfig

@@ -1,6 +1,7 @@
 BR2_aarch64=y
 BR2_cortex_a72=y
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_6=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
 BR2_GLOBAL_PATCH_DIR="board/freescale/ls1046a-rdb/patches"
 BR2_DOWNLOAD_FORCE_CHECK_HASHES=y
 BR2_TARGET_GENERIC_HOSTNAME="ls1046ardb"
@@ -20,9 +21,10 @@ BR2_LINUX_KERNEL_INTREE_DTS_NAME="freescale/fsl-ls1046a-rdb freescale/fsl-ls1046
 BR2_LINUX_KERNEL_INSTALL_TARGET=y
 BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
 BR2_PACKAGE_QORIQ_FM_UCODE=y
+BR2_PACKAGE_FMC=y
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
-BR2_TARGET_ROOTFS_EXT2_SIZE="128M"
+BR2_TARGET_ROOTFS_EXT2_SIZE="200M"
 # BR2_TARGET_ROOTFS_TAR is not set
 BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
 BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_TARBALL=y