[bsp][nxp] s/libraries/Libraries

The upper/lower case matters under *nix

bsp/nxp/mcx/mcxn/frdm-mcxn236/Kconfig

@@ -14,5 +14,5 @@ config SOC_MCX
 
 source "$(RTT_DIR)/Kconfig"
 osource "$PKGS_DIR/Kconfig"
-rsource "../libraries/Kconfig"
+rsource "../Libraries/Kconfig"
 rsource "board/Kconfig"

bsp/nxp/mcx/mcxn/frdm-mcxn947/Kconfig

@@ -14,5 +14,5 @@ config SOC_MCX
 
 source "$(RTT_DIR)/Kconfig"
 osource "$PKGS_DIR/Kconfig"
-rsource "../libraries/Kconfig"
+rsource "../Libraries/Kconfig"
 rsource "board/Kconfig"