MdePkg/BaseLib: Fix AARCH64 compilation error

Declare InternalAssertJumpBuffer as EXTERN

Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Shun Cheng Liu <adam.liu@tw.synaptics.com>
Reviewed-by: levi.yun <yeoreum.yun@arm.com>
2 files changed