Don't put .reginfo into .bss but prepare an independent section for it

so that new ld(1) no longer dies on link as PR/33011.

Still ld(1) coredump problem should be fixed, IMO.

sys/arch/ews4800mips/stand/common/bootxx.ldscript

@@ -1,4 +1,3 @@
-
 OUTPUT_FORMAT("elf32-tradbigmips")
 OUTPUT_ARCH(mips)
 STARTUP(entry.o)
@@ -17,6 +16,7 @@ SECTIONS {
 		*(.text)
 		_etext = .;
 	} > ram
+	.reginfo : { *(.reginfo) } > ram
 	.data ALIGN(4) :
 	{
 		_data = .;
@@ -30,7 +30,6 @@ SECTIONS {
 		_bss = .;
 		*(.bss)
 		*(.scommon)
-		*(.reginfo)
 		_ebss = .;
 	} > ram
 	_end = .;