drm/msm: Fix CP_BV_DRAW_STATE_ADDR name

This was missed because we weren't using the a750-specific indexed regs.

Fixes: f3f8207d ("drm/msm: Add devcoredump support for a750")
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/607394/


Signed-off-by: Rob Clark <robdclark@chromium.org>