Osiris: Remove const keyword from rgbkbd_type variable
Osiris: Remove const keyword from rgbkbd_type variable

Rgbkbd_type could be set at runtime, remove const.

BUG=b:242259557
BRANCH=none
TEST=None

Cq-Depend: chromium:3864982, chromium:3861817, chromium:3866411
Signed-off-by: Parth Malkan <c3d09dcbffc3a0a63125afed46f55e5cbf5bb3a9@google.com>
Change-Id: I63e7f034aeb3ca31cbe293e5d2c4defd8c21176e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3864981
Reviewed-by: YH Lin <a608809fda0b3a5e5ffc78f5b79106a21e96e6dd@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec