ADSP: Add support for assembler

In commit e9eabb0dcd (ADSP: Configure compiler in compiler module,
2022-03-24, v3.24.0-rc1~331^2~1) we added compiler information modules
for the ADSP C and C++ compilers.  Add one for the assembler too.
We already identify the ADSP assembler since commit f83330ed6c (ASM:
ADSP assembler identification, 2018-01-30, v3.11.0-rc1~35^2).

Modules/Compiler/ADSP-ASM.cmake

@@ -0,0 +1,6 @@
+include(Compiler/ADSP)
+__compiler_adsp(ASM)
+
+set(CMAKE_ASM_SOURCE_FILE_EXTENSIONS asm)
+set(CMAKE_ASM_OUTPUT_EXTENSION ".o" )
+set(CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -o <OBJECT> <SOURCE>")