Unicorn initialization parameters change for ARM

[elouet]

For the ARM architecture, it appears that the following line no longer works
err = uc_open (UC_ARCH_ARM, bits==64? UC_MODE_64: UC_MODE_32, &uh);
instead I tried
err = uc_open (bits==64? UC_ARCH_ARM64: UC_ARCH_ARM, UC_MODE_ARM, &uh);
which works better. My version of unicorn (build from latest source) won't intialize with the former statement.

[elouet]

we may want to look into the second parameters which allows for THUMB mode, but then what happens with mixed modes, I'm not sure.