tools: Split webcam configuration from script

The configuration is not dynamic, so we can simply store it
separately and concatenate it to the configuration file, like
we already do with the networking stuff.

tools/build-kernel-qemu

@@ -117,37 +117,8 @@ CONFIG_HW_RANDOM_VIRTIO=y
 EOF
 
 if [ $USB_WEBCAM_MODULES ] ; then
-echo "Make sure you have drivers for your webcam selected in menuconfig"
-echo >> .config << EOF
-# won't work as statically linked
-CONFIG_MEDIA_SUPPORT=m
-CONFIG_VIDEO_DEV=m
-CONFIG_VIDEO_V4L2_COMMON=m
-CONFIG_VIDEO_MEDIA=m
-CONFIG_VIDEO_V4L2=m
-CONFIG_VIDEO_CAPTURE_DRIVERS=m
-CONFIG_V4L_USB_DRIVERS=m
-CONFIG_USB_VIDEO_CLASS=m
-CONFIG_VIDEO_CORE=m
-CONFIG_VIDEO_VIDEOBUF2=m
-CONFIG_INPUT_CORE=m
-CONFIG_VIDEO_UVC=m
-
-CONFIG_USB=m
-CONFIG_USB_STORAGE=m
-CONFIG_USB_EHCI_HCD=m
-CONFIG_USB_OHCI_HCD=m
-CONFIG_USB_UHCI_HCD=m
-CONFIG_USB_VHCI_HCD=m
-CONFIG_USB_GSPCA=m
-CONFIG_VIDEO_GSPCA=m
-
-CONFIG_I2C=m
-
-# won't be accepted as modules so linking statically
-CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
-CONFIG_MEDIA_CAMERA_SUPPORT=y
-EOF
+    echo "Make sure you have drivers for your webcam selected in menuconfig"
+    cat ../config_webcam >> .config
 fi
 
 cat ../config_ip_tables >> .config

tools/config_webcam

@@ -0,0 +1,28 @@
+# won't work as statically linked
+CONFIG_MEDIA_SUPPORT=m
+CONFIG_VIDEO_DEV=m
+CONFIG_VIDEO_V4L2_COMMON=m
+CONFIG_VIDEO_MEDIA=m
+CONFIG_VIDEO_V4L2=m
+CONFIG_VIDEO_CAPTURE_DRIVERS=m
+CONFIG_V4L_USB_DRIVERS=m
+CONFIG_USB_VIDEO_CLASS=m
+CONFIG_VIDEO_CORE=m
+CONFIG_VIDEO_VIDEOBUF2=m
+CONFIG_INPUT_CORE=m
+CONFIG_VIDEO_UVC=m
+
+CONFIG_USB=m
+CONFIG_USB_STORAGE=m
+CONFIG_USB_EHCI_HCD=m
+CONFIG_USB_OHCI_HCD=m
+CONFIG_USB_UHCI_HCD=m
+CONFIG_USB_VHCI_HCD=m
+CONFIG_USB_GSPCA=m
+CONFIG_VIDEO_GSPCA=m
+
+CONFIG_I2C=m
+
+# won't be accepted as modules so linking statically
+CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
+CONFIG_MEDIA_CAMERA_SUPPORT=y