toolchain/Config.in: update gcc version for gcc bug 68485

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

toolchain/Config.in

@@ -139,7 +139,7 @@ config BR2_TOOLCHAIN_HAS_GCC_BUG_64735
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_7
 
 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68485. This bug still
-# exists in gcc 9.x
+# exists in gcc 12.x
 config BR2_TOOLCHAIN_HAS_GCC_BUG_68485
 	bool
 	default y if BR2_microblaze