Relax static assert in ELFSection.h

This patch relaxes the static assert in `include/eld/Readers/ELFSection.h`

Signed-off-by: Rishabh Bali <rbali@qti.qualcomm.com>

Author: Ris-Bali

include/eld/Readers/ELFSection.h

@@ -338,7 +338,9 @@ class ELFSection : public ELFSectionBase {
   llvm::SmallVector<ELFSection *, 0> DependentSections;
 };
 
-static_assert(sizeof(ELFSection) <= 240, "ELFSection grew too large!");
+#ifndef _WIN32
+static_assert(sizeof(ELFSection) <= 248, "ELFSection grew too large!");
+#endif
 
 } // namespace eld