As found by Joseph, the dependency of
gcc/config/loongarch/loongarch-str.h is spelled incorrectly,
it should be
gcc/config/loongarch/genopts/loongarch-strings
but was using
gcc/config/loongarch/genopts/loongarch-string

2022-03-31  Jakub Jelinek  <jakub@redhat.com>
	    Joseph Myers  <joseph@codesourcery.com>

	PR other/105114
	* gcc_update: Fix up spelling of
	gcc/config/loongarch/genopts/loongarch-strings dependency.