lib, linux: move linux specific defines to linux/compat.h

- move linux specific defines from usb and video code
  into linux/compat.h
- move common linux specific defines from include/ubi_uboot.h
  to linux/compat.h
- add for new mtd/ubi/ubifs sync new needed linux specific
  defines to linux/compat.h

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
[trini: Add spin_lock_irqsave/spin_unlock_irqrestore dummies from
usb/lin_gadet_compat.h]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/lib/Makefile b/lib/Makefile
index 9b1c237..320197a 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -59,6 +59,7 @@
 obj-y += ctype.o
 obj-y += div64.o
 obj-y += hang.o
+obj-y += linux_compat.o
 obj-y += linux_string.o
 obj-$(CONFIG_REGEX) += slre.o
 obj-y += string.o