aarch64: Add attributes for builtins specified in aarch64-builtins.c

aarch64: Add attributes for builtins specified in aarch64-builtins.c

Besides the builtins in aarch64-simd-builtins.def there are a number of builtins defined in aarch64-builtins.c itself.
They could also benefit from the attributes generated by aarch64_get_attributes.
However aarch64_get_attributes and its helpers are only set up to handle a aarch64_simd_builtin_datum.

This patch changes these functions to instead take a flag and mode value that are extracted from
aarch64_simd_builtin_datum.flags and aarch64_simd_builtin_datum.mode anyway.
Then the various builtin init functions in aarch64-builtins.c can pass down their own FLAG_* flags
that they want to derive attributes from.

gcc/ChangeLog:

	* config/aarch64/aarch64-builtins.c (aarch64_call_properties):
	Take a flag and mode value as arguments.
	(aarch64_modifies_global_state_p): Likewise.
	(aarch64_reads_global_state_p): Likewise.
	(aarch64_could_trap_p): Likewise.
	(aarch64_get_attributes): Likewise.
	(aarch64_init_simd_builtins): Adjust callsite of above.
	(aarch64_init_fcmla_laneq_builtins): Use aarch64_get_attributes to get
	function attributes to apply to builtins.
	(aarch64_init_crc32_builtins): Likewise.
	(aarch64_init_builtin_rsqrt): Likewise.