Move require-pic-register-loc.c to correct directory

From-SVN: r204119

diff --git a/testsuite/gcc.target/arm/require-pic-register-loc.c b/gcc/testsuite/gcc.target/arm/require-pic-register-loc.c
similarity index 100%
rename from testsuite/gcc.target/arm/require-pic-register-loc.c
rename to gcc/testsuite/gcc.target/arm/require-pic-register-loc.c