ARM: dts: omap4: fix clock node definitions to avoid build warnings

Upcoming change to DT compiler is going to complain about nodes
which have a reg property, but have not defined the address in their
name. This patch fixes following type of warnings for OMAP4 clock nodes:

Warning (unit_address_vs_reg): Node /ocp/cm@48004000/clocks/dpll3_m2_ck
has a reg or ranges property, but no unit name

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap443x-clocks.dtsi

@@ -8,7 +8,7 @@
  * published by the Free Software Foundation.
  */
 &prm_clocks {
-	bandgap_fclk: bandgap_fclk {
+	bandgap_fclk: bandgap_fclk@1888 {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
 		clocks = <&sys_32k_ck>;