fix name of sh crt asm directory
diff --git a/crt/superh/crti.s b/crt/sh/crti.s
similarity index 100%
rename from crt/superh/crti.s
rename to crt/sh/crti.s
diff --git a/crt/superh/crtn.s b/crt/sh/crtn.s
similarity index 100%
rename from crt/superh/crtn.s
rename to crt/sh/crtn.s