arm: Fix pr69245.c testcase for reorder assembler architecture directives [PR101723]

arm: Fix pr69245.c testcase for reorder assembler architecture directives [PR101723]

In gcc.target/arm/pr69245.c, to have a .fpu neon-vfpv4 directive, make
sure code for fn1() is emitted, by removing the static keyword.

Fix a typo in gcc.target/arm/pr69245.c, where \s should be \\s.

2021-08-06  Christophe Lyon  <christophe.lyon@foss.st.com>

	gcc/testsuite/

	PR target/101723
	* gcc.target/arm/pr69245.c: Make sure to emit code for fn1, fix
	typo.

(cherry picked from commit aff75af3b50f8c039ed6fbfa3f313ba45d44f6e6)