bsps: Sort .noinit* sections

Sort the .noinit* input sections by name first, then by alignment if two
sections have the same name.  This allows the placement of begin/end symbols to
initialize some areas with a special value.

Update #4678.

bsps/or1k/shared/start/linkcmds.base

@@ -287,7 +287,7 @@ SECTIONS {
 
   .noinit (NOLOAD) : ALIGN_WITH_INPUT {
     bsp_section_noinit_begin = .;
-    *(.noinit*)
+    *(SORT_BY_NAME (SORT_BY_ALIGNMENT (.noinit*)))
     bsp_section_noinit_end = .;
   } > REGION_BSS AT > REGION_BSS
   bsp_section_noinit_size = bsp_section_noinit_end - bsp_section_noinit_begin;