boards: shields: dvp_fpc24_mt9m114: search shield in lowercase

The script zephyr/scripts/kconfig/kconfigfunctions.py used by
Kconfig's "shields_list_contains" searches shield names in lower-case,
like they are passed through the SHIELD in CMake, --shield argument
in west. Make the mt9m114 shield upper-case. This has no effect currently
as this Kconfig entry is not used anywhere in Zephyr.

Signed-off-by: Josuah Demangeon <me@josuah.net>

Author: josuah

boards/shields/dvp_fpc24_mt9m114/Kconfig.shield

@@ -2,4 +2,4 @@
 # SPDX-License-Identifier: Apache-2.0
 
 config SHIELD_DVP_FPC24_MT9M114
-	def_bool $(shields_list_contains,DVP_FPC24_MT9M114)
+	def_bool $(shields_list_contains,dvp_fpc24_mt9m114)