drm/msm/adreno: fix a7xx gpu init

The gpulist has twice the a6xx gpulist, replace the second one
with the a7xx gpulist.

Solves:
msm_dpu ae01000.display-controller: Unknown GPU revision: 7.3.0.1
msm_dpu ae01000.display-controller: Unknown GPU revision: 67.5.10.1
msm_dpu ae01000.display-controller: Unknown GPU revision: 67.5.20.1

on SM8450, SM8550 & SM8560.

Fixes: 8ed322f6 ("drm/msm/adreno: Split up giant device table")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>