loongson: 2k1000: default defconfig not enable RT

Changelog: 2k1000 默认配置默认不使能RT
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>

arch/loongarch/configs/loongson_2k1000_defconfig

@@ -6,7 +6,7 @@ CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_BPF_SYSCALL=y
 CONFIG_BPF_JIT=y
-CONFIG_PREEMPT_RT=y
+CONFIG_PREEMPT=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_BSD_PROCESS_ACCT_V3=y
 CONFIG_TASKSTATS=y
@@ -350,7 +350,6 @@ CONFIG_EFI_ZBOOT=y
 CONFIG_EFI_BOOTLOADER_CONTROL=m
 CONFIG_EFI_CAPSULE_LOADER=m
 CONFIG_EFI_TEST=m
-# CONFIG_EFI_DISABLE_RUNTIME is not set
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_BLOCK=y