aarch64 testsuite: Check entire .arch string

aarch64 testsuite: Check entire .arch string

Add a terminating newline to various tests, and add missing
extensions to some test strings.  The current output is broken for
options_set_4.c, so this test is left unchanged, to be fixed in a
subsequent patch.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/cpunative/native_cpu_18.c: Add \+nopauth\n
	* gcc.target/aarch64/options_set_7.c: Add \+crc\n
	* gcc.target/aarch64/options_set_8.c: Add \+crc\+nodotprod\n
	* gcc.target/aarch64/cpunative/native_cpu_0.c: Add \n
	* gcc.target/aarch64/cpunative/native_cpu_1.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_2.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_3.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_4.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_5.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_6.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_7.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_8.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_9.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_10.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_11.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_12.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_13.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_14.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_15.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_16.c: Ditto.
	* gcc.target/aarch64/cpunative/native_cpu_17.c: Ditto.
	* gcc.target/aarch64/options_set_1.c: Ditto.
	* gcc.target/aarch64/options_set_2.c: Ditto.
	* gcc.target/aarch64/options_set_3.c: Ditto.
	* gcc.target/aarch64/options_set_5.c: Ditto.
	* gcc.target/aarch64/options_set_6.c: Ditto.
	* gcc.target/aarch64/options_set_9.c: Ditto.
	* gcc.target/aarch64/options_set_11.c: Ditto.
	* gcc.target/aarch64/options_set_12.c: Ditto.
	* gcc.target/aarch64/options_set_13.c: Ditto.
	* gcc.target/aarch64/options_set_14.c: Ditto.
	* gcc.target/aarch64/options_set_15.c: Ditto.
	* gcc.target/aarch64/options_set_16.c: Ditto.
	* gcc.target/aarch64/options_set_17.c: Ditto.
	* gcc.target/aarch64/options_set_18.c: Ditto.
	* gcc.target/aarch64/options_set_19.c: Ditto.
	* gcc.target/aarch64/options_set_20.c: Ditto.
	* gcc.target/aarch64/options_set_21.c: Ditto.
	* gcc.target/aarch64/options_set_22.c: Ditto.
	* gcc.target/aarch64/options_set_23.c: Ditto.
	* gcc.target/aarch64/options_set_24.c: Ditto.
	* gcc.target/aarch64/options_set_25.c: Ditto.
	* gcc.target/aarch64/options_set_26.c: Ditto.