coredump: support riscv arch. [2/2]

PD#SWPL-123277

Problem:
coredump add new arch.

Solution:
add new arch.

Verify:
N/A

Change-Id: I1a7b01af91482d853ff12c8dc9401d82ac754d4d
Signed-off-by: shijie.xiong <shijie.xiong@amlogic.com>
3 files changed