Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140609-1' into...

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target-arm queue:
 * support -bios option in vexpress boards
 * register the Cortex-A57 impdef system registers
 * fix handling of UXN bit in ARMv8 page tables
 * complete support of crypto insns in A32/T32
 * implement CRC and crypto insns in A64
 * fix bugs in generic timer control register

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# gpg: Signature made Mon 09 Jun 2014 16:08:26 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20140609-1:
  target-arm: Delete unused iwmmxt_msadb helper
  target-arm: Fix errors in writes to generic timer control registers
  target-arm: A64: Implement two-register SHA instructions
  target-arm: A64: Implement 3-register SHA instructions
  target-arm: A64: Implement AES instructions
  target-arm: A32/T32: Mask CRC value in calling code, not helper
  target-arm: A64: Implement CRC instructions
  target-arm: VFPv4 implies half-precision extension
  target-arm: Clean up handling of ARMv8 optional feature bits
  target-arm: Remove unnecessary setting of feature bits
  target-arm: arm_any_initfn() should never set ARM_FEATURE_AARCH64
  target-arm: A64: Use PMULL feature bit for PMULL
  target-arm: add support for v8 VMULL.P64 instruction
  target-arm: Allow 3reg_wide undefreq to encode more bad size options
  target-arm: add support for v8 SHA1 and SHA256 instructions
  target-arm: Correct handling of UXN bit in ARMv8 LPAE page tables
  target-arm: Prepare cpreg writefns/readfns for EL3/SecExt
  target-arm/cpu64.c: Actually register Cortex-A57 impdef registers
  vexpress: Add support for the -bios flag to provide firmware

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>