[ELF] Change std::max<uint64_t> to uint32_t for section alignment
[ELF] Change std::max<uint64_t> to uint32_t for section alignment

Summary:
We use `uint32_t SectionBase::Alignment` and `uint32_t
PhdrEntry::p_align` despite alignments being 64 bits in ELF64.
Fix the std::max template arguments accordingly.

The currently 160-byte InputSection will become 168 bytes if we make SectionBase::Alignment uint64_t.

Differential Revision: https://reviews.llvm.org/D61171

git-svn-id: f6089bf0e6284f307027cef4f64114ee9ebb0424@359268 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lld,llvm-mirror/lld