staging: fsl-mc: remove stale Makefile entry for dpmng.o

Removing the file causes a build failure:

make[5]: *** No rule to make target 'drivers/staging/fsl-mc/bus/dpmng.o', needed by 'drivers/staging/fsl-mc/bus/mc-bus-driver.o'.

This adapts the Makefile as needed.

---
 drivers/staging/fsl-mc/bus/Makefile | 1 -
 1 file changed, 1 deletion(-)

index 659eccf52a4f..6df407edfade 100644
@@ -11,7 +11,6 @@ mc-bus-driver-objs := fsl-mc-bus.o \
 		      mc-sys.o \
 		      mc-io.o \
 		      dprc.o \
-		      dpmng.o \
 		      dprc-driver.o \
 		      fsl-mc-allocator.o \
 		      fsl-mc-msi.o \

2.9.0