drm/msm/dsi: fix check-before-set in the 7nm dsi_pll code

drm/msm/dsi: fix check-before-set in the 7nm dsi_pll code

[ Upstream commit 3b24cdfc721a5f1098da22f9f68ff5f4a5efccc9 ]

Fix setting min/max DSI PLL rate for the V4.1 7nm DSI PLL (used on
sm8250). Current code checks for pll->type before it is set (as it is
set in the msm_dsi_pll_init() after calling device-specific functions.

Cc: Jonathan Marek <jonathan@marek.ca>
Fixes: 1ef7c99d145c ("drm/msm/dsi: add support for 7nm DSI PHY/PLL")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>