arm64: dts: qcom: qrb5165-rb5: Fix 'dtbs_check' error for led nodes

make dtbs_check currently reports the following errors
with qrb5165-rb5 led nodes:

arch/arm64/boot/dts/qcom/qrb5165-rb5.dtb:
 leds: 'bt', 'user4', 'wlan' do not match any of the regexes:
  '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'

Fix the same.

Also while at it, fix a blank line issue in the led
node.

Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220719205058.1004942-3-bhupesh.sharma@linaro.org

arch/arm64/boot/dts/qcom/qrb5165-rb5.dts

@@ -58,7 +58,7 @@ hdmi_con: endpoint {
 	leds {
 		compatible = "gpio-leds";
 
-		user4 {
+		led-user4 {
 			label = "green:user4";
 			function = LED_FUNCTION_INDICATOR;
 			color = <LED_COLOR_ID_GREEN>;
@@ -67,7 +67,7 @@ user4 {
 			default-state = "off";
 		};
 
-		wlan {
+		led-wlan {
 			label = "yellow:wlan";
 			function = LED_FUNCTION_WLAN;
 			color = <LED_COLOR_ID_YELLOW>;
@@ -76,7 +76,7 @@ wlan {
 			default-state = "off";
 		};
 
-		bt {
+		led-bt {
 			label = "blue:bt";
 			function = LED_FUNCTION_BLUETOOTH;
 			color = <LED_COLOR_ID_BLUE>;
@@ -84,7 +84,6 @@ bt {
 			linux,default-trigger = "bluetooth-power";
 			default-state = "off";
 		};
-
 	};
 
 	lt9611_1v2: lt9611-vdd12-regulator {