Remove the selectedwindow options.

There is no logic behind the default window selection. The last
option parsed set the default window. Instead of having a specific
boolean set, use the first bit found in the flags for selecting the
the windows.

eg. powerdebug -s -g
	=> flags = SENSOR_OPTION | GPIO_OPTION;
	=> flags = 0x2 | 0x8 = 0x0a
	=> flags = b01010000
	=> fsl(flags) = 2
	=> default window = 1 << fsl(flags) - 1
	=> default window = 1 << 2 - 1
	=> default window = 1 << 1
	=> default window = 2 = SENSOR_OPTION

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
diff --git a/powerdebug.c b/powerdebug.c
index b626b05..b0d2ade 100644
--- a/powerdebug.c
+++ b/powerdebug.c
@@ -93,7 +93,6 @@
 
 	memset(options, 0, sizeof(*options));
 	options->ticktime = 10;
-	options->selectedwindow = -1;
 
 	while (1) {
 		int optindex = 0;
@@ -106,19 +105,15 @@
 		switch (c) {
 		case 'r':
 			options->flags |= REGULATOR_OPTION;
-			options->selectedwindow = REGULATOR;
 			break;
 		case 's':
 			options->flags |= SENSOR_OPTION;
-			options->selectedwindow = SENSOR;
 			break;
 		case 'c':
 			options->flags |= CLOCK_OPTION;
-			options->selectedwindow = CLOCK;
 			break;
 		case 'g':
 			options->flags |= GPIO_OPTION;
-			options->selectedwindow = GPIO;
 			break;
 		case 'd':
 			options->flags |= DUMP_OPTION;
@@ -152,9 +147,6 @@
 	if (!(options->flags & DEFAULT_OPTION))
 		options->flags |= DEFAULT_OPTION;
 
-	if (options->selectedwindow == -1)
-		options->selectedwindow = CLOCK;
-
 	return 0;
 }
 
@@ -177,7 +169,7 @@
 
 static int powerdebug_display(struct powerdebug_options *options)
 {
-	if (display_init(options->selectedwindow)) {
+	if (display_init(options)) {
 		printf("failed to initialize display\n");
 		return -1;
 	}