riscv: defconfig: align RV64 defconfig to the output of "make savedefconfig"
Paul Walmsley authored

Align the RV64 defconfig to the output of "make savedefconfig" to
avoid unnecessary deltas for future defconfig patches.  This patch
should have no runtime functional impact.
Signed-off-by: default avatarPaul Walmsley <paul.walmsley@sifive.com>
Reviewed-by: default avatarBin Meng <bmeng.cn@gmail.com>
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