audio: asrc: add HiFi5 file to LLEXT build

added asrc_farrow_hifi5.c file
to the llext build configuration for the volume module
to provide full support for the HiFi5 platform.

Signed-off-by: Adrian Bonislawski <adrian.bonislawski@intel.com>

Author: abonislawski

src/audio/asrc/llext/CMakeLists.txt

@@ -4,6 +4,7 @@
 sof_llext_build("asrc"
 	SOURCES ../asrc.c
 		../asrc_farrow_hifi3.c
+		../asrc_farrow_hifi5.c
 		../asrc_farrow.c
 		../asrc_farrow_generic.c
 		../asrc_ipc4.c