ARM64: Populate implicitly used/modified registers and map ARM64_GRP_CALL for several instructions

[ghost]

This commit adds some registers to the list of implicit used registers and
implicit modified registers for several AArch64 instructions.

This commit also maps the ARM64_GRP_CALL group to the BL* instruction family.
It should fix issue #1606.

Finally, this commit adds ARM64_REG_NZCV register to implicited used register to some branch instructions.

[ghost]

E: Failed to fetch https://apt.llvm.org/trusty/pool/main/l/llvm-toolchain-snapshot/libllvm9_9~svn362770-1~exp1+0~20190607061653.2401~1.gbp2444fc_amd64.deb  Operation too slow. Less than 10 bytes/sec transferred the last 30 seconds

E: Failed to fetch https://apt.llvm.org/trusty/pool/main/l/llvm-toolchain-snapshot/libclang1-9_9~svn362770-1~exp1+0~20190607061653.2401~1.gbp2444fc_amd64.deb  Operation too slow. Less than 10 bytes/sec transferred the last 30 seconds

E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
apt-get.diagnostics

apt-get install failed

The command "sudo -E apt-get -yq --no-install-suggests --no-install-recommends $(travis_apt_get_options) install clang-9" failed and exited with 100 during .

Your build has been stopped.

Travis is tired; made that PR red ffs

[aquynh]

merged, thanks!