arch/riscv: Move common.h fron drivers to arch dir. [1/1]

PD#SWPL-68240

Problem:
Move common.h fron drivers to arch dir.

Solution:
Move common.h fron drivers to arch dir.

Verify:
N/A

Change-Id: I74c8817b6d5ba3f3ead84205235381e8080b94d0
Signed-off-by: Xiaohu.Huang <xiaohu.huang@amlogic.com>
2 files changed