ntb: intel: split out the gen3 code

Move the Intel hw gen3 code to its own source file. The ntb_hw_intel.c was
getting too large and makes it hard to maintain with future hardware
changes.

Signed-off-by: Dave Jiang <[email protected]>
Signed-off-by: Jon Mason <[email protected]>

Author: davejiang

drivers/ntb/hw/intel/Makefile

@@ -1 +1,2 @@
 obj-$(CONFIG_NTB_INTEL) += ntb_hw_intel.o
+ntb_hw_intel-y := ntb_hw_gen1.o ntb_hw_gen3.o