lttng-modules: fix build issues with the v3.17 kernel
The lttng-modules recipe was failing for meta-intel BSPs with the v3.17 kernel.
These BSP kernels were enabling some of the audio codec drivers, whose
structures are changed recently, causing mismatch with lttng-modules code
expectations. The qemu machines did not see this issue as they were not
enabling these sound codec kernel configuration.
Fix the build issue, by changing the lttng-modules code to match with
the structures used by the v3.17 kernel. The code is conditional on the
kernel version, that way it keeps working with the older kernel versions.
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
