modern: add missing sections to linkerscript

In order to correctly link a program which uses libc functions
a few sections are required to satisfy the linker.

This currently adds 0x3C bytes to IWRAM.

ld_script_modern.txt

@@ -27,6 +27,8 @@ SECTIONS {
         /* .bss starts at 0x3000000 */
         src/*.o(.bss);
         gflib/*.o(.bss);
+        *libc.a:*.o(.bss);
+        *libnosys.a:*.o(.bss);
 
         /* .bss.code starts at 0x3001AA8 */
         src/m4a.o(.bss.code);
@@ -34,7 +36,8 @@ SECTIONS {
         /* COMMON starts at 0x30022A8 */
         src/*.o(COMMON);
         gflib/*.o(COMMON);
-        *libc.a:sbrkr.o(COMMON);
+        *libc.a:*.o(COMMON);
+        *libnosys.a:*.o(COMMON);
         end = .;
         . = 0x8000;
     }
@@ -82,6 +85,7 @@ SECTIONS {
         *libagbsyscall.a:*.o(.text*);
         *libgcc.a:*.o(.text*);
         *libc.a:*.o(.text*);
+        *libnosys.a:*.o(.text*);
         src/libisagbprn.o(.text);
     } =0