Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20191220' into...

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20191220' into staging

target-arm queue:
 * Support emulating the generic timers at frequencies other than 62.5MHz
 * Various fixes for SMMUv3 emulation bugs
 * Improve assert error message for hflags mismatches
 * arm-powerctl: rebuild hflags after setting CP15 bits in arm_set_cpu_on()

# gpg: Signature made Fri 20 Dec 2019 14:25:51 GMT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20191220:
  arm/arm-powerctl: rebuild hflags after setting CP15 bits in arm_set_cpu_on()
  target/arm: Display helpful message when hflags mismatch
  hw/arm/smmuv3: Report F_STE_FETCH fault address in correct word position
  hw/arm/smmuv3: Use correct bit positions in EVT_SET_ADDR2 macro
  hw/arm/smmuv3: Align stream table base address to table size
  hw/arm/smmuv3: Check stream IDs against actual table LOG2SIZE
  hw/arm/smmuv3: Correct SMMU_BASE_ADDR_MASK value
  hw/arm/smmuv3: Apply address mask to linear strtab base address
  ast2600: Configure CNTFRQ at 1125MHz
  target/arm: Prepare generic timer for per-platform CNTFRQ
  target/arm: Abstract the generic timer frequency
  target/arm: Remove redundant scaling of nexttick

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