misc: bmp085: devicetree irq update.

Document irq handling for bmp085.

Signed-off-by: Marek Belisko <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

Documentation/devicetree/bindings/misc/bmp085.txt

···
 - temp-measurement-period: temperature measurement period (milliseconds)
 - default-oversampling: default oversampling value to be used at startup,
   value range is 0-3 with rising sensitivity.
+- interrupt-parent: should be the phandle for the interrupt controller
+- interrupts: interrupt mapping for IRQ
 
 Example:
 
···
 	chip-id = <10>;
 	temp-measurement-period = <100>;
 	default-oversampling = <2>;
+	interrupt-parent = <&gpio0>;
+	interrupts = <25 IRQ_TYPE_EDGE_RISING>;
 };