platform: qemu/sifive_u: Update the hart count to 4
authorBin Meng <bmeng.cn@gmail.com>
Fri, 17 May 2019 15:49:01 +0000 (08:49 -0700)
committerAnup Patel <anup@brainfault.org>
Thu, 30 May 2019 17:06:17 +0000 (22:36 +0530)
commit2b80945ac7e64b90a9d28e05f59341f88db16030
treec41c120962158c136cfeb3455cf2204a0cbbff65
parenta6395acd6cb2c35871481d3e4f0beaf449f8c0fd
platform: qemu/sifive_u: Update the hart count to 4

Since QEMU commit 8b1d0714bfdd
"riscv: sifive_u: Allow up to 4 CPUs to be created",
the maximum number of hart for sifive_u is 4.

Change our hart count to match that.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
platform/qemu/sifive_u/platform.c