aarch64: Fix typos in various files

Signed-off-by: Dhruv Chawla <dhruvc@nvidia.com>

gcc/ChangeLog:

	* common/config/aarch64/aarch64-common.cc (aarch64_parse_cpu): Fix
	typos.
	* common/config/aarch64/cpuinfo.h: Likewise.
	* config/aarch64/aarch64-builtins.cc: Likewise.
	* config/aarch64/aarch64-c.cc (aarch64_pragma_target_parse): Likewise.
	* config/aarch64/aarch64-modes.def (FLOAT_MODE): Likewise.
	* config/aarch64/aarch64-simd.md: Likewise.
	* config/aarch64/aarch64-speculation.cc: Likewise.
	* config/aarch64/aarch64-sve-builtins-functions.h: Likewise.
	* config/aarch64/aarch64-sve-builtins-shapes.cc (struct binary_za_m_def): Likewise.
	* config/aarch64/aarch64-sve-builtins.cc (function_builder::add_function): Likewise.
	* config/aarch64/aarch64-sve.md: Likewise.
	* config/aarch64/aarch64-sve2.md: Likewise.
	* config/aarch64/aarch64.cc (aarch64_init_sysregs): Likewise.
	(aarch64_load_symref_appropriately): Likewise.
	(aarch64_output_sve_cnt_immediate): Likewise.
	(aarch64_replace_reg_mode): Likewise.
	(aarch64_pass_by_reference_1): Likewise.
	(aarch64_layout_arg): Likewise.
	(aarch64_allocate_and_probe_stack_space): Likewise.
	(aarch64_legitimize_address_displacement): Likewise.
	(aarch64_output_casesi): Likewise.
	(aarch64_stp_sequence_cost): Likewise.
	(aarch64_vector_costs::add_stmt_cost): Likewise.
	(aarch64_override_options): Likewise.
	(aarch64_functions_b_resolvable_from_a): Likewise.
	(dispatch_function_versions): Likewise.
	(aarch64_can_inline_p): Likewise.
	(aarch64_classify_symbol): Likewise.
	(aarch64_build_builtin_va_list): Likewise.
	(aarch64_sve_pred_valid_immediate): Likewise.
	(aarch64_simd_lane_bounds): Likewise.
	(aarch64_expand_vector_init_fallback): Likewise.
	(aarch64_modes_compatible_p): Likewise.
	(aarch64_ldrstr_offset_compare): Likewise.
	(aarch64_speculation_safe_value): Likewise.
	* config/aarch64/aarch64.h (DEFAULT_PCC_STRUCT_RETURN): Likewise.
	(struct GTY): Likewise.
	* config/aarch64/aarch64.md: Likewise.
	* config/aarch64/aarch64.opt: Likewise.
	* config/aarch64/arm_bf16.h: Likewise.
	* config/aarch64/arm_neon.h (vbslq_u64): Likewise.
	* config/aarch64/cortex-a57-fma-steering.cc: Likewise.
	* config/aarch64/driver-aarch64.cc (get_cpu_from_id): Likewise.
	(host_detect_local_cpu): Likewise.
	* config/aarch64/iterators.md: Likewise.
	* config/aarch64/thunderx.md: Likewise.
	* config/aarch64/thunderx3t110.md: Likewise.

libgcc/ChangeLog:

	* config/aarch64/aarch64-unwind.h (aarch64_demangle_return_addr): Fix
	typos.