coreboot: rename from NeKernel firmware, refactor symbols to `cb_`, update docs

This patch completes a major renaming and cleanup of the firmware codebase:

- Rename project from "NeKernel Firmware" to "CoreBoot" in README and comments.
- Replace all `mp_`-prefixed symbols with `cb_` to reflect the new naming scheme.
- Remove obsolete SPECIFICATION.TXT and replace with SPECIFICATION_FIRMWARE.md.
- Update memory-mapped I/O helpers, TLB init, and platform-specific code to match `cb_*` naming.
- Refactor low-level UART, panic, PCI-tree, partition map, and context setup to use unified `cb_` API.
- Adjust linker scripts and boot vectors for ARM64, PPC64, and RV64 targets accordingly.
- Add Doxygen documentation note to README.

This change is part of an ongoing effort to rebrand and unify the firmware interface, improve naming clarity, and better align with platform-specific toolchains.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/ppc64/linkscript.ld b/src/ppc64/linkscript.ld
index da9209c..660ed07 100644
--- a/src/ppc64/linkscript.ld
+++ b/src/ppc64/linkscript.ld
@@ -1,4 +1,4 @@
-ENTRY(mp_reset_vector)

+ENTRY(cb_reset_vector)

 SECTIONS

 {

   . = 0xf00000;

@@ -11,5 +11,5 @@ SECTIONS
  . = . + 0x1000; /* 4kB of stack memory */

  stack_top = .;

 

- PROVIDE(mp_memory_end = .);

+ PROVIDE(cb_memory_end = .);

 }