drm/msm/dsi-staging: add vote for ldo1 from dsi phy

DSI PLL is powered by 0p9 supply,this change fixes bug where
dsi was missing its vote on 0p9 regulator.

Change-Id: I44ba5baa8c352cf92e5f4c9239dba81d2c3dd8c0
Signed-off-by: Vara Reddy <varar@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/dsi-staging/dsi_phy.c b/drivers/gpu/drm/msm/dsi-staging/dsi_phy.c
index 2567f04..07b2305 100644
--- a/drivers/gpu/drm/msm/dsi-staging/dsi_phy.c
+++ b/drivers/gpu/drm/msm/dsi-staging/dsi_phy.c
@@ -663,7 +663,7 @@
 			}
 		}
 	} else {
-		if (dsi_phy->dsi_phy_state == DSI_PHY_ENGINE_ON &&
+		if (dsi_phy->dsi_phy_state == DSI_PHY_ENGINE_OFF &&
 				dsi_phy->regulator_required) {
 			rc = dsi_pwr_enable_regulator(
 				&dsi_phy->pwr_info.phy_pwr, false);