Fix arm64 HAVE_SME setting for DYNAMIC_ARCH builds

Author: martin-frbg

kernel/CMakeLists.txt

@@ -238,6 +238,9 @@ function (build_core TARGET_CORE KDIR TSUFFIX KERNEL_DEFINITIONS)
     if (X86_64 OR ARM64)
        set(USE_DIRECT_SGEMM true)
     endif()
+    if (UC_TARGET_CORE MATCHES ARMV9SME)
+          set (HAVE_SME true)
+    endif ()
 
     if (USE_DIRECT_SGEMM)
 	    #	    if (NOT DEFINED SGEMMDIRECTKERNEL)