NetworkPkg: Add RngLib mapping for LOONGARCH64

NetworkPkg will build failed on LOONGARCH64 platform, because
LOONGARCH64 don't support MdePkg/Library/BaseRngLib. So add
MdeModulePkg/Library/BaseRngLibTimerLib as BaseRngLib of
LOONGARCH64 platform.

Signed-off-by: Qihang Gao <gaoqihang@loongson.cn>
Cc: Chao Li <lichao@loongson.cn>
1 file changed