MdePkg: Add LoongArch64 local interrupt function set into BaseLib

Adding LoongArch local interrupt function set, which is used to control
the opening or closing of the local interrupt when the global interrupt
is enabled.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

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: Chao Li <lichao@loongson.cn>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>

MdePkg/Include/Library/BaseLib.h

@@ -307,6 +307,26 @@ SetTlbRebaseAddress (
   IN UINT64
   );
 
+/**
+  Enables local CPU interrupts.
+
+  @param  Needs to enable local interrupt bit.
+**/
+VOID
+EnableLocalInterrupts (
+  IN UINT16
+  );
+
+/**
+  Disables local CPU interrupts.
+
+  @param  Needs to disable local interrupt bit.
+**/
+VOID
+DisableLocalInterrupts (
+  IN UINT16
+  );
+
 #endif // defined (MDE_CPU_LOONGARCH64)
 
 //