[test] Replace .data.rel.ro with .section .data.rel.ro,"aw"

to avoid using the extension unsupported by gas.

Author: MaskRay

bolt/test/X86/Inputs/define_bar.s

@@ -1,5 +1,5 @@
 # Mocks a vtable object weak def in the C++ stdlib.
-  .data.rel.ro
+  .section .data.rel.ro,"aw"
   .weak bar
   .type bar, %object
 bar:

lld/test/ELF/linkerscript/lma-align.test

@@ -1,5 +1,5 @@
 # REQUIRES: x86
-# RUN: echo '.globl _start; _start: ret; .data.rel.ro; .balign 16; .byte 0; \
+# RUN: echo '.globl _start; _start: ret; .section .data.rel.ro,"aw"; .balign 16; .byte 0; \
 # RUN:   .data; .balign 32; .byte 0; .bss; .byte 0' | \
 # RUN:   llvm-mc -filetype=obj -triple=x86_64 - -o %t.o
 # RUN: ld.lld -T %s %t.o -o %t 2>&1 | FileCheck --check-prefix=WARN %s --implicit-check-not=warning:

lld/test/ELF/linkerscript/section-address-align.test

@@ -2,7 +2,7 @@
 ## Test ALIGN when specifying the output section address.
 
 # RUN: echo '.globl _start; _start: ret; \
-# RUN:   .data.rel.ro; .balign 8; .byte 0; \
+# RUN:   .section .data.rel.ro,"aw"; .balign 8; .byte 0; \
 # RUN:   .data; .byte 0; \
 # RUN:   .bss; .balign 32; .byte 0' | \
 # RUN:   llvm-mc -filetype=obj -triple=x86_64 - -o %t.o

lld/test/ELF/linkerscript/section-align2.test

@@ -1,7 +1,7 @@
 # REQUIRES: aarch64
 ## Test ALIGN and its interaction with explicit output section addresses.
 
-# RUN: echo '.globl _start; _start: ret; .data.rel.ro; .balign 8; .byte 0; .data; .byte 0; \
+# RUN: echo '.globl _start; _start: ret; .section .data.rel.ro,"aw"; .balign 8; .byte 0; .data; .byte 0; \
 # RUN:   .section .data2,"aw"; .balign 8; .byte 0; \
 # RUN:   .section .data3,"aw"; .balign 32; .byte 0; \
 # RUN:   .bss; .balign 32; .byte 0' | \