kbuild: fix unneeded rebuilds in drivers/media/video after moving source tree

This fixes some uneeded rebuilds under drivers/media/video after moving
the source tree. The makefiles used $(src) and $(srctree) for include
paths, which is unnecessary. Changed to use relative paths.

Compile tested, produces byte-identical code to the previous makefiles.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index 4092a5e..b3ea2d6 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -84,4 +84,4 @@
 obj-$(CONFIG_USB_KONICAWC)      += usbvideo/
 obj-$(CONFIG_USB_VICAM)         += usbvideo/
 
-EXTRA_CFLAGS += -I$(srctree)/drivers/media/dvb/dvb-core
+EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core
diff --git a/drivers/media/video/cx25840/Makefile b/drivers/media/video/cx25840/Makefile
index 32a896c..6e8665b 100644
--- a/drivers/media/video/cx25840/Makefile
+++ b/drivers/media/video/cx25840/Makefile
@@ -3,4 +3,4 @@
 
 obj-$(CONFIG_VIDEO_CX25840) += cx25840.o
 
-EXTRA_CFLAGS += -I$(src)/..
+EXTRA_CFLAGS += -Idrivers/media/video
diff --git a/drivers/media/video/cx88/Makefile b/drivers/media/video/cx88/Makefile
index 6482b9a..0dcd09b 100644
--- a/drivers/media/video/cx88/Makefile
+++ b/drivers/media/video/cx88/Makefile
@@ -8,9 +8,9 @@
 obj-$(CONFIG_VIDEO_CX88_ALSA) += cx88-alsa.o
 obj-$(CONFIG_VIDEO_CX88_VP3054) += cx88-vp3054-i2c.o
 
-EXTRA_CFLAGS += -I$(src)/..
-EXTRA_CFLAGS += -I$(srctree)/drivers/media/dvb/dvb-core
-EXTRA_CFLAGS += -I$(srctree)/drivers/media/dvb/frontends
+EXTRA_CFLAGS += -Idrivers/media/video
+EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core
+EXTRA_CFLAGS += -Idrivers/media/dvb/frontends
 
 extra-cflags-$(CONFIG_VIDEO_BUF_DVB) += -DHAVE_VIDEO_BUF_DVB=1
 extra-cflags-$(CONFIG_DVB_CX22702)   += -DHAVE_CX22702=1
diff --git a/drivers/media/video/em28xx/Makefile b/drivers/media/video/em28xx/Makefile
index da457a0..826d0e3 100644
--- a/drivers/media/video/em28xx/Makefile
+++ b/drivers/media/video/em28xx/Makefile
@@ -3,4 +3,4 @@
 
 obj-$(CONFIG_VIDEO_EM28XX) += em28xx.o
 
-EXTRA_CFLAGS += -I$(src)/..
+EXTRA_CFLAGS += -Idrivers/media/video
diff --git a/drivers/media/video/saa7134/Makefile b/drivers/media/video/saa7134/Makefile
index 1ba9984..be7b9ee 100644
--- a/drivers/media/video/saa7134/Makefile
+++ b/drivers/media/video/saa7134/Makefile
@@ -11,9 +11,9 @@
 
 obj-$(CONFIG_VIDEO_SAA7134_DVB) += saa7134-dvb.o
 
-EXTRA_CFLAGS += -I$(src)/..
-EXTRA_CFLAGS += -I$(srctree)/drivers/media/dvb/dvb-core
-EXTRA_CFLAGS += -I$(srctree)/drivers/media/dvb/frontends
+EXTRA_CFLAGS += -Idrivers/media/video
+EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core
+EXTRA_CFLAGS += -Idrivers/media/dvb/frontends
 
 extra-cflags-$(CONFIG_VIDEO_BUF_DVB) += -DHAVE_VIDEO_BUF_DVB=1
 extra-cflags-$(CONFIG_DVB_MT352)     += -DHAVE_MT352=1