Fixed bug #64142 (dval to lval different behavior on ppc64)

See discussion on internals
http://marc.info/?t=136042277700003&r=1&w=2
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fixed bug #64142 (dval to lval different behavior on ppc64)
NEWS
build fixes
Improve x86 inline assembler

- added cc annotation to inline asm that clobbers the condition
  flags
- remove hardcoded constants (IS_LONG,IS_DOUBLE)
- remove hardcoded offsets (zval->value, zval->type)
Low-level ARM optimizations

- added ARM versions of zend_mm_high_bit()/zend_mm_low_bit()
- improved safe_address()
NEWS update
Update config.sub/config.guess to latest GPLv2 upstream version

This adds the ability to configure/build for/on 64-bit ARMv8,
which uses the host triplet 'aarch64-linux-gnu'.

Source:
  http://git.savannah.gnu.org/gitweb/?p=config.git;h=306afce