openocd: remove recently added CamelCase symbols

openocd: remove recently added CamelCase symbols

Without the help of checkpatch, some CamelCase symbol passed
through the filter of maintainer's review.

Drop them.

Change-Id: If5fb07b2ffb89e853dd2a61f20d4134aa6e20d24
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Fixes: 48f267d4adea ("flash/stm32l4x: avoid using magic numbers for device ids")
Fixes: 5ab74bde0654 ("semihosting: User defined operation, Tcl command exec on host")
Reviewed-on: https://review.openocd.org/c/openocd/+/7154
Tested-by: jenkins