Fix another test that was trying to set the architecture directly
rather than using the infrastructure as intended.
gcc/testsuite:
* gcc.target/arm/pr88648-asm-syntax-unified.c: It isn't necessary
to try to override the architecture flags specified by arm_arch_v7a.
/* Test for unified syntax assembly generation. */
/* { dg-do compile } */
/* { dg-require-effective-target arm_arch_v7a_ok } */
+/* { dg-options "-marm -masm-syntax-unified" } */
/* { dg-add-options arm_arch_v7a } */
-/* { dg-options "-marm -march=armv7-a -masm-syntax-unified" } */
void test ()
{