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 <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

include/linux/fsl_devices.h

···
 #define FSL_USB2_PORT0_ENABLED	0x00000001
 #define FSL_USB2_PORT1_ENABLED	0x00000002
 
-#define FLS_USB2_WORKAROUND_ENGCM09152	(1 << 0)
 
 struct spi_device;