video: fbdev: sis: delete double assignment

Delete successive assignments to the same location.  The second assignment
is changed to update a different field, as done in other nearby code.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression i;
@@

*i = ...;
 i = ...;
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/fbdev/sis/init301.c

@@ -1714,7 +1714,7 @@ SiS_GetLCDResInfo(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned sh
 			       SiS_Pr->PanelVCLKIdx315 = VCLK81_315; /* ? */
 			    } else {
 			       SiS_Pr->PanelHT   = 1688; SiS_Pr->PanelVT   =  802;
-			       SiS_Pr->PanelHRS  =   48; SiS_Pr->PanelHRS  =  112;
+			       SiS_Pr->PanelHRS  =   48; SiS_Pr->PanelHRE  =  112;
 			       SiS_Pr->PanelVRS  =    3; SiS_Pr->PanelVRE  =    6;
 			       SiS_Pr->PanelVCLKIdx300 = VCLK81_300;
 			       SiS_Pr->PanelVCLKIdx315 = VCLK81_315;