Runtime: correct homing module for swift_coroFrameAlloc

This function is part of the Swift standard library, not the *C*
standard library. Correct the library name for the module to ensure that
it is properly exported.

Author: compnerd

include/swift/Runtime/RuntimeFunctions.def

@@ -2099,7 +2099,7 @@ FUNCTION(Free, c, free, C_CC, AlwaysAvailable,
          NO_ATTRS,
          EFFECT(Deallocating),
          UNKNOWN_MEMEFFECTS)
-FUNCTION(CoroFrameAlloc, c, swift_coroFrameAlloc, C_CC, AlwaysAvailable,
+FUNCTION(CoroFrameAlloc, Swift, swift_coroFrameAlloc, C_CC, AlwaysAvailable,
          RETURNS(Int8PtrTy),
          ARGS(SizeTy, Int64Ty),
          NO_ATTRS,