microblaze: Sync defconfig with latest Kconfig layout

Layout was changed by commit 6210b640
("kernel-hacking: group sysrq/kgdb/ubsan into 'Generic Kernel Debugging Instruments'")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/configs/mmu_defconfig

@@ -83,9 +83,9 @@ CONFIG_CIFS=y
 CONFIG_CIFS_STATS2=y
 CONFIG_ENCRYPTED_KEYS=y
 CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_SLAB=y
-CONFIG_DETECT_HUNG_TASK=y
-CONFIG_DEBUG_SPINLOCK=y
 CONFIG_KGDB=y
 CONFIG_KGDB_TESTS=y
 CONFIG_KGDB_KDB=y
+CONFIG_DEBUG_SLAB=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEBUG_SPINLOCK=y