Replace OpenWrt variable by a kernel one

Using $(TOPDIR)/qca/src/ is *bad-bad-bad*, as it makes the driver
build dependent on the actual position of the NSS driver component
within the build system.

The right way to include headers files from a kernel module would
be to use $(srctree), which will always be defined, as it's a Kbuild
variable. That will work independently of the source position, and this
doesn't tie it to a particular build system layout.

Change-Id: I1c7c10a8563a52dfb293fd9f16fcdbc260bcfcbf
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
1 file changed