riscv: update toolchain from V7.2.0 to V8.2.0 for riscv. [1/1]

PD#SWPL-151959

Problem:
update toolchain from V7.2.0 to V8.2.0 for riscv.

Solution:
update toolchain from V7.2.0 to V8.2.0 for riscv.

Verify:
N/A

Change-Id: I24dc0895c8a40b5e98f2af54c76d91570bebed5e
Signed-off-by: xiaohu.huang <xiaohu.huang@amlogic.com>
1 file changed