boards: fanke: fk723m1_zgt6: fix Kconfig warning

Move Kconfig symbol setting to 'Kconfig.defconfig' file to fix
compliance check "defined without a type" warning.

Signed-off-by: Abderrahmane JARMOUNI <[email protected]>

Author: JarmouniA

boards/fanke/fk723m1_zgt6/Kconfig.defconfig

@@ -0,0 +1,13 @@
+# FK723M1-ZGT6 board configuration
+#
+# Copyright The Zephyr Project Contributors
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+if BOARD_FK723M1_ZGT6
+
+config SDMMC_STM32_CLOCK_CHECK
+	default n
+
+endif # BOARD_FK723M1_ZGT6

boards/fanke/fk723m1_zgt6/Kconfig.fk723m1_zgt6

@@ -3,10 +3,3 @@
 
 config BOARD_FK723M1_ZGT6
 	select SOC_STM32H723XX
-
-if BOARD_FK723M1_ZGT6
-
-config SDMMC_STM32_CLOCK_CHECK
-	default n
-
-endif # BOARD_FK723M1_ZGT6