Shrink C2 and C3 builds

Author: tannewt

ports/espressif/esp-idf-config/sdkconfig-esp32c2.defaults

@@ -1,6 +1,10 @@
 #
 # Espressif IoT Development Framework Configuration
 #
+# Compiler options
+#
+CONFIG_COMPILER_SAVE_RESTORE_LIBCALLS=y
+# end of Compiler options
 #
 # Component config
 #

ports/espressif/esp-idf-config/sdkconfig-esp32c3.defaults

@@ -1,6 +1,10 @@
 #
 # Espressif IoT Development Framework Configuration
 #
+# Compiler options
+#
+CONFIG_COMPILER_SAVE_RESTORE_LIBCALLS=y
+# end of Compiler options
 #
 # Component config
 #

ports/espressif/tools/update_sdkconfig.py

@@ -139,10 +139,9 @@ def sym_default(sym):
     # to n or the symbol to m in those cases).
     if (
         sym.choice
-        and not sym.choice.is_optional
         and sym.choice._selection_from_defaults() is sym
-        and sym.orig_type is kconfiglib.core.BOOL
-        and sym.tri_value == 2
+        and sym.orig_type == kconfiglib.core.BOOL
+        and sym.bool_value == 2
     ):
         return True