drm/msm/sde: adding implementation for mdp_top in hw driver

Add mdp_top block support to hw layer, provides split pipe
control, and interface select. Use mdp_top from intf block
to program interface select.

Change-Id: I15f2070f7d552a6ec11bda0302f362e22ca6e84e
Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_hw_sspp.c b/drivers/gpu/drm/msm/sde/sde_hw_sspp.c
index 5319922..19cedd3 100644
--- a/drivers/gpu/drm/msm/sde/sde_hw_sspp.c
+++ b/drivers/gpu/drm/msm/sde/sde_hw_sspp.c
@@ -414,7 +414,7 @@
 		return;
 
 	for (i = 0; i < cfg->src.num_planes; i++)
-		SDE_REG_WRITE(c, SSPP_SRC0_ADDR  + idx + i*0x4,
+		SDE_REG_WRITE(c, SSPP_SRC0_ADDR + idx + i*0x4,
 			cfg->addr.plane[i]);
 }