lib/test_linear_ranges: Use LINEAR_RANGE()

New initialization macro for linear ranges was added. Slightly simplify
the test code by using this macro - and at the same time also verify the
macro is working as intended.

Use the newly added LINEAR_RANGE() initialization macro for linear range
test.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/Y3R13IRrs+x5PcZ4@dc75zzyyyyyyyyyyyyydt-3.rev.dnainternet.fiSigned-off-by: Mark Brown <broonie@kernel.org>

lib/test_linear_ranges.c

@@ -107,17 +107,8 @@ static const unsigned int range2_vals[] = { RANGE2_MIN, RANGE2_MIN +
 #define SMALLEST_VAL RANGE1_MIN
 
 static struct linear_range testr[] = {
-	{
-		.min = RANGE1_MIN,
-		.min_sel = RANGE1_MIN_SEL,
-		.max_sel = RANGE1_MAX_SEL,
-		.step = RANGE1_STEP,
-	}, {
-		.min = RANGE2_MIN,
-		.min_sel = RANGE2_MIN_SEL,
-		.max_sel = RANGE2_MAX_SEL,
-		.step = RANGE2_STEP
-	},
+	LINEAR_RANGE(RANGE1_MIN, RANGE1_MIN_SEL, RANGE1_MAX_SEL, RANGE1_STEP),
+	LINEAR_RANGE(RANGE2_MIN, RANGE2_MIN_SEL, RANGE2_MAX_SEL, RANGE2_STEP),
 };
 
 static void range_test_get_value(struct kunit *test)