Add support for memcpy/memset to RS.

Bug: 3426446
Change-Id: I78170a50bdd891d928b3db96685b4c3c801b6f00
diff --git a/libs/rs/rsScriptC_Lib.cpp b/libs/rs/rsScriptC_Lib.cpp
index 8a85f6e..80da8ae 100644
--- a/libs/rs/rsScriptC_Lib.cpp
+++ b/libs/rs/rsScriptC_Lib.cpp
@@ -856,6 +856,8 @@
     { "__modsi3", (void *)&SC_modsi3, true },
     { "__udivsi3", (void *)&SC_udivsi3, true },
     { "__umodsi3", (void *)&SC_umodsi3, true },
+    { "memset", (void *)&memset, true },
+    { "memcpy", (void *)&memcpy, true },
 
     // allocation
     { "_Z19rsAllocationGetDimX13rs_allocation", (void *)&SC_allocGetDimX, true },