arch: arm: aarch64: linker.ld: Fix ROM section names

This commit fixes the improper naming of the ROM sections.

1. Rename the first ROM section, which was previously named using the
  `_TEXT_SECTION_NAME` definition, to `rom_start`, as this section does
  not actually represent the text section.

2. Rename the second ROM section, which was previously named
  `_TEXT_SECTION_NAME_2` which supposedly refers to the definition of
  the same name that does not exist, to `_TEXT_SECTION_NAME`. Note that
  this is indeed the section that contains the text section from the
  source image.

Signed-off-by: Stephanos Ioannidis <[email protected]>

Author: stephanosio

include/arch/arm/aarch64/scripts/linker.ld

@@ -114,7 +114,7 @@ SECTIONS
 
     _image_rom_start = ROM_ADDR;
 
-    SECTION_PROLOGUE(_TEXT_SECTION_NAME,,)
+    SECTION_PROLOGUE(rom_start,,)
     {
 
 #if defined(CONFIG_SW_VECTOR_RELAY)
@@ -144,7 +144,7 @@ SECTIONS
 
 #endif /* CONFIG_CODE_DATA_RELOCATION */
 
-    SECTION_PROLOGUE(_TEXT_SECTION_NAME_2,,)
+    SECTION_PROLOGUE(_TEXT_SECTION_NAME,,)
     {
         _image_text_start = .;
         *(.text)