Build System: Extract validate_arch helper function

Signed-off-by: Yevhen Babiichuk (DustDFG) <dfgdust@gmail.com>

platform_methods.py

@@ -1,6 +1,7 @@
 import os
 import platform
 import subprocess
+import sys
 
 import methods
 
@@ -40,6 +41,15 @@ def detect_arch():
         return "x86_64"
 
 
+def validate_arch(arch, platform_name, supported_arches):
+    if arch not in supported_arches:
+        methods.print_error(
+            'Unsupported CPU architecture "%s" for %s. Supported architectures are: %s.'
+            % (arch, platform_name, ", ".join(supported_arches))
+        )
+        sys.exit(255)
+
+
 def get_build_version(short):
     import version