bluez4: added dependency on 'libsndfile1'

bluez4 detects and uses libsndfile1 and the compilation can fail with

| sbc/sbctester.c:32:21: fatal error: sndfile.h: No such file or directory
| ...
| compilation terminated.
| make[1]: *** [sbc/sbctester.o] Error 1

in rebuilds (image with libsndfile1 was built, then some change ->
bluez4 do_configure runs with libsndfile1 -> libsndfile1 gets removed
-> bluez4 do_compile fails).

As there is no trivial way to disable its detection and to make it a
PACKAGECONFIG option, 'libsndfile1' was put into static DEPENDS.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
sanity: Don't hard code value of ENAMETOOLONG

Although ENAMETOOLONG is 36 on Linux x86 and x86_64 it does isn't on other
architectures so the value shouldn't be hard coded.

Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
sanity: Use random filename for maximum path length test

check_create_long_filename used a fixed filename for its test files. This
meant that os.remove(testfile) could fail with ENOENT if two instances were
running at the same time against the same sstate directory. Using a
randomly generated filename stops this from happening.

(Although it might seem unlikely, this race did appear to occur multiple
times with Jenkins - presumably because the matrix jobs were all kicked off
at the same time.)

Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
linux-firmware: add missing linux-firmware-iwlwifi-7260-7 package

The FILES / RDEPENDS lines were added for this package, but not the
entry in PACKAGES, so it was never being created.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>