ARC: gcc-m-cpu: use -mcpu=archs as a default for ARCv2 HS

Due to the fact that we use -mcpu=hs as a default for ARCv2 HS
the compiler doesn't generate multiply/divide/mac/64bit memory
operations instructions.

Fix that by using -mcpu=archs as a default for ARCv2 HS which is
fits for all existing boards with ARCv2 HS CPU.

Signed-off-by: Eugeniy Paltsev <[email protected]>
Signed-off-by: Evgeniy Paltsev <[email protected]>

Author: evgeniy-paltsev

cmake/gcc-m-cpu.cmake

@@ -55,7 +55,7 @@ elseif("${ARCH}" STREQUAL "arc")
   elseif(CONFIG_CPU_EM4_FPUDA)
     set(GCC_M_CPU em4_fpuda)
   elseif(CONFIG_CPU_HS3X)
-    set(GCC_M_CPU hs)
+    set(GCC_M_CPU archs)
   elseif(CONFIG_CPU_HS6X)
     set(GCC_M_CPU arc64)
   elseif(CONFIG_CPU_EM4)