binutils: Upgrade to 2.46 release

binutils: Upgrade to 2.46 release

New Features:
Support for new instructions added to AMD, ARM and RISC-V architectures.
Support for version 3 of the SFrame standard.
The readelf program can now display the contents of Global Offset Tables.
Improved linker tagging support.

Detailed release notes are here [1]

[1] https://lists.gnu.org/archive/html/info-gnu/2026-02/msg00006.html

Dropped patches:
0001-aarch64-constify-BTI-and-GCS-report-functions.patch
Since the fix is already included in binutils 2.46.

CVE patches: CVE-2025-11081,CVE-2025-11082,CVE-2025-11083,
CVE-2025-11839,CVE-2025-11840,CVE-2025-11412,CVE-2025-11413,
CVE-2025-11414,CVE-2025-11494,CVE-2025-11495.
These were dropped because they are already addressed in binutils 2.46.

Drop CVE_STATUS:
binutils 2.46 has needed fixes for CVE-2025-7545 and CVE-2025-7546.

Rebase existing patches with binutils 2.46.

Fix elfutils-ptest regression for arm64.

Testing Results:
+----------------------+--------+--------+------+
| Result               | 2.45.1 |  2.46  | Diff |
+----------------------+--------+--------+------+
| Expected Passes      | 318    |  331   | +13  |
| Untested Testcases   | 5      |  5     |  0   |
| Unsupported Tests    | 8      |  6     | -2   |
+----------------------+--------+--------+------+

Testcases changes:
-------------------------------------------------------------------------------
Testcase-name                                             2.45.1        2.46
-------------------------------------------------------------------------------
nm --ifunc-chars=-- (global ifunc)                          -           PASS
nm --ifunc-chars=-- (local ifunc)                           -           PASS
copy with unknown section flag                              -           PASS
objcopy tek2bin                                             -           PASS
binary symbol (implicit)                                    -           PASS
binary symbol (explicit)                                    -           PASS
readelf SFrame V2 (x86-64/test-v2-ET_EXEC.sframe)           -           PASS
objdump SFrame V2 (x86-64/test-v2-ET_EXEC.sframe)           -           PASS
readelf SFrame V2 (x86-64/test-v2-ET_REL.sframe)            -           PASS
objdump SFrame V2 (x86-64/test-v2-ET_REL.sframe)            -           PASS
run objcopy of executable                                UNSUPPORTED    PASS
run stripped executable                                  UNSUPPORTED    PASS
run stripped executable with saving a symbol             UNSUPPORTED    PASS
Copy object attributes v2 data from an object to another    -        UNSUPPORTED

Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com>