fix(arm): guard .size directive in EPILOGUE for non-ELF targets

The `.size REALNAME, .-REALNAME` directive is valid for ELF targets but may be unnecessary or unsupported on Apple (Mach-O) and Windows (PE) assembly. Wrap the `.size` line in a conditional so that it is only emitted when not targeting __APPLE__ or _WIN32. This prevents potential assembler warnings or errors on those platforms while preserving the size directive for Linux/ELF builds. The GNUSTACK emission remains unchanged.

Signed-off-by: minicx <minicx@disroot.org>

Author: loss-and-quick

common_arm.h

@@ -121,7 +121,9 @@ static inline int blas_quickdivide(blasint x, blasint y){
 #endif
 
 #define EPILOGUE \
+#if !defined(__APPLE__) && !defined(_WIN32)
         .size    REALNAME, .-REALNAME;	\
+#endif
         GNUSTACK