X86: Change bit_YMM_state to (1 << 2)

All other state bits, except for bit_YMM_state, are defined as (1 << N).
This patch changes bit_YMM_state from (2 << 1) to (1 << 2).

	* sysdeps/x86/cpu-features.h (bit_YMM_state): Set to (1 << 2).