riscv: simplify Kconfig magic for 32-bit vs 64-bit kernels

We can deduct this directly using a select from ARCH_RV32I/ARCH_RV64I.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Christoph Hellwig 2018-04-27 08:38:23 +02:00
commit c3e4ed012b