arm64: kdump: enable kdump in defconfig

Kdump is enabled by default as kexec is.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Conflicts:
	arch/arm64/configs/defconfig

Author: AKASHI Takahiro

arch/arm64/configs/defconfig

@@ -59,6 +59,7 @@ CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_CMA=y
 CONFIG_KEXEC=y
+CONFIG_CRASH_DUMP=y
 CONFIG_CMDLINE="console=ttyAMA0"
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 CONFIG_COMPAT=y