drivers: media: pcie: hailo: Fix include paths

An attempt to fix the include paths - they look reasonable, but the
GitHub auto-builds fail.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>

Author: pelwell

drivers/media/pci/hailo/Makefile

@@ -25,8 +25,8 @@ hailo_pci-objs += $(VDMA_SRC_DIRECTORY)/ioctl.o
 
 ccflags-y      += -Werror
 ccflags-y      += -DHAILO_RASBERRY_PIE
-ccflags-y      += -I$(srctree)/$(src)
-ccflags-y      += -I$(srctree)/$(src)/include
-ccflags-y      += -I$(srctree)/$(src)/common
+ccflags-y      += -I $(src)
+ccflags-y      += -I $(src)/include
+ccflags-y      += -I $(src)/common
 
 clean-files := $(hailo_pci-objs)