meson-s4t7: Fix custom_kernel_config: hash modification has to happen…

… inside the first function call

Will be ignored on second time the function is called

config/sources/families/meson-s4t7.conf

@@ -127,10 +127,12 @@ function custom_kernel_config__add_khadas_common_drivers() {
 
 		# Hack to ensure that we will recreate kernel if common_drivers source changes
 		kernel_config_modifying_hashes+=( "khadas_common_drivers=${GIT_INFO_COMMON_DRIVERS[SHA1]}" )
+
+		# viraniac: kernel_config_modifying_hashes is only needed during first call of this function to calculate kernel artifact version string. It serves no purpose whatsoever during second call.
+		kernel_config_modifying_hashes+=("CONFIG_DEBUG_KERNEL=y" "CONFIG_EXPERT=y" "CONFIG_EMBEDDED=y")
 	else
 		# Unfortunately, debug kernel has to be enabled to make khadas_common_drivers compile
 		display_alert "Enabling kernel config" "DEBUG_KERNEL=y, EXPERT=y, EMBEDDED=y to fix khadas_common_drivers compilation" "info"
-		kernel_config_modifying_hashes+=("CONFIG_DEBUG_KERNEL=y" "CONFIG_EXPERT=y" "CONFIG_EMBEDDED=y")
 		kernel_config_set_y DEBUG_KERNEL
 		kernel_config_set_y EXPERT
 		kernel_config_set_y EMBEDDED