video: fbdev: nvidia: clean up indentation issues and comment block

There is a hunk of code that is incorrectly indented, clean up the
indentation and a comment block. Also remove block braces around a
one line statement on an if condition and add missing spaces after
if keywords.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200113144627.219967-1-colin.king@canonical.com

drivers/video/fbdev/nvidia/nvidia.c

@@ -168,27 +168,26 @@ static int nvidia_panel_tweak(struct nvidia_par *par,
 {
 	int tweak = 0;
 
-   if (par->paneltweak) {
-	   tweak = par->paneltweak;
-   } else {
-	   /* begin flat panel hacks */
-	   /* This is unfortunate, but some chips need this register
-	      tweaked or else you get artifacts where adjacent pixels are
-	      swapped.  There are no hard rules for what to set here so all
-	      we can do is experiment and apply hacks. */
-
-	   if(((par->Chipset & 0xffff) == 0x0328) && (state->bpp == 32)) {
-		   /* At least one NV34 laptop needs this workaround. */
-		   tweak = -1;
-	   }
-
-	   if((par->Chipset & 0xfff0) == 0x0310) {
-		   tweak = 1;
-	   }
-	   /* end flat panel hacks */
-   }
-
-   return tweak;
+	if (par->paneltweak) {
+		tweak = par->paneltweak;
+	} else {
+		/* Begin flat panel hacks.
+		 * This is unfortunate, but some chips need this register
+		 * tweaked or else you get artifacts where adjacent pixels are
+		 * swapped.  There are no hard rules for what to set here so all
+		 * we can do is experiment and apply hacks.
+		 */
+		if (((par->Chipset & 0xffff) == 0x0328) && (state->bpp == 32)) {
+			/* At least one NV34 laptop needs this workaround. */
+			tweak = -1;
+		}
+
+		if ((par->Chipset & 0xfff0) == 0x0310)
+			tweak = 1;
+		/* end flat panel hacks */
+	}
+
+	return tweak;
 }
 
 static void nvidia_screen_off(struct nvidia_par *par, int on)