include: fsl_devices.h: drop unused, misspelled FLS_USB2_WORKAROUND_ENGCM09152

include: fsl_devices.h: drop unused, misspelled FLS_USB2_WORKAROUND_ENGCM09152

The macro was introduced in commit 69cb1ec4ce4d ("mxc_udc: add
workaround for ENGcm09152 for i.MX35") on 2010-10-15, but its prefix was
misspelled as **FLS_** instead of the usual **FSL_**.

Its last in-tree user disappeared with commit a390bef7db1f ("usb:
gadget: fsl_mxc_udc: Remove the driver") on 2020-12-10, so the macro has
been completely unused since then.

Remove the dead and wrongly named definition.

Signed-off-by: RubenKelevra <rubenkelevra@gmail.com>
Link: https://lore.kernel.org/r/20250618164743.1916838-1-rubenkelevra@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>