riscv: Move .rela.dyn outside of init to avoid empty relocations

This is a preparatory patch for relocatable kernels: .rela.dyn should be
in .init but doing so actually produces empty relocations, so this should
be a temporary commit until we find a solution.

This issue was reported here [1].

[1] https://lore.kernel.org/all/4a6fc7a3-9697-a49b-0941-97f32194b0d7@ghiti.fr/.

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230329045329.64565-3-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Author: Alexandre Ghiti

arch/riscv/kernel/vmlinux.lds.S

@@ -96,10 +96,6 @@ SECTIONS
 		*(.rel.dyn*)
 	}
 
-	.rela.dyn : {
-		*(.rela*)
-	}
-
 	__init_data_end = .;
 
 	. = ALIGN(8);
@@ -126,6 +122,10 @@ SECTIONS
 		*(.sdata*)
 	}
 
+	.rela.dyn : {
+		*(.rela*)
+	}
+
 #ifdef CONFIG_EFI
 	.pecoff_edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGNMENT); }
 	__pecoff_data_raw_size = ABSOLUTE(. - __pecoff_text_end);