danctnix-besser: regen cumulative patch with bes_chardev.{c,h} merge fix

Build (PID 558898 on boltzmann) failed at bes2600_btuart.c:81:
  error: implicit declaration of function 'bes2600_chrdev_switch_subsys_glb'

Root cause: the original danctnix-flavor adaptation overlaid Mobian's
heavily-trimmed bes_chardev.{c,h} on top of pristine danctnix.  Mobian's
flavor (694 lines) had stripped out the BT/WiFi subsystem-switch
orchestration that pristine danctnix (1387 lines) carries and that
danctnix-only bes2600_btuart.c calls.

Fix: restore pristine danctnix bes_chardev.{c,h} as the baseline for
those two files in the danctnix flavor, then reapply Mobian's
campaign-relevant changes:
  - Patch G: SPDX-License-Identifier header + corrected attribution
  - Patch B: bes2600_chrdev_do_bus_reset + _trigger_bus_reset
    (definitions in bes_chardev.c, declarations in bes_chardev.h,
    EXPORT_SYMBOL_GPL on _trigger_bus_reset since it is called from
    sta.c connection-loss-storm fast-recover path)

Phase 6 thread-safety contract: bus_reset functions read
bes2600_cdev.{sbus_ops,sbus_priv} without locking, identical to the
Mobian-flavor source-of-truth - acceptable given the bus_reset is
invoked from already-serialized higher-level error paths in sta.c.

48 files unchanged in count, +1412/-1243 (was +1426/-2003).  The
delta vs the previous patch is concentrated in bes_chardev.{c,h}:
+776/-16 in .c (restoring the BT/WiFi switching infrastructure plus
appending Patch B), +2/-2 in .h (declarations + SPDX).

Patch verified to apply cleanly to v7.0-danctnix1 baseline.
b2sum updated in PKGBUILD.

Build retrigger pending on his.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

danctnix-besser-pkgbuild/kernel/PKGBUILD

@@ -50,7 +50,7 @@ b2sums=('3d9795083c8938f80f480de0d10bfd9c525640e59d5c7f22983de3f12ee42c84c31be90
         'SKIP'
         '71fe98221e802b315e54b4b10d3e8c8f376695a36bae3541d876e5776a37f3fa33c8f8dfa6e51fcbd6f5396add02e5166634165f2351836a0ea0453c172fe56c'
         'SKIP'
-        '93fa699a467ed671632eae6e4b47cd544b1a591619d58a33e9be9fa3a77d21e108a57847517138b43ee12efbc11cd1ad848d14673ea4224b3d516783a0b5b0e7'
+        'fca0a5badf762d5dbc085261cccc07ddeef96384d2ae0a426fb0412acd7a180e068cabd59f01342b7575d41889afc0f47dfbc9256801ab809f746278e6dab510'
         '19c35c69a4ed40635fb6ad108d2e0ed3d0edc682972255b4a9b719d09e377aa916e533b2e29f4aed256d3a393d77df9e11b661b690acd96edcf61eafe016f55b')
 
 export KBUILD_BUILD_HOST=archlinux