fix pagesize on ia64

Author: Mic92

src/patchelf.cc

@@ -317,7 +317,8 @@ unsigned int ElfFile<ElfFileParamNames>::getPageSize() const
     // Architectures (and ABIs) can have different minimum section alignment
     // requirements. There is no authoritative list of these values. The
     // current list is extracted from GNU gold's source code (abi_pagesize).
-    switch (rdi(hdr()->e_machine)) {
+    switch (rdi(hdr()->e_machine)) {4:
+      case EM_IA_64:
       case EM_SPARC:
       case EM_MIPS:
       case EM_PPC: