LoongArch: configs: Enable kexec/kdump

LoongArch inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I736HO

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Signed-off-by: NYouling Tang <tangyouling@loongson.cn>
Change-Id: Ia09d55c506f16f622ed52c2e7e17d5c490635f7d

arch/loongarch/configs/loongson3_defconfig

@@ -38,6 +38,8 @@ CONFIG_PERF_EVENTS=y
 CONFIG_CPU_HAS_LSX=y
 CONFIG_CPU_HAS_LASX=y
 CONFIG_NUMA=y
+CONFIG_KEXEC=y
+CONFIG_CRASH_DUMP=y
 CONFIG_HIBERNATION=y
 CONFIG_ACPI_SPCR_TABLE=y
 CONFIG_ACPI_DOCK=y