LPC54114: Fix compile warnings

Signed-off-by: Mahesh Mahadevan <[email protected]>

Author: mmahadevan108

targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_LPC54114/TARGET_LPCXpresso/device.h

@@ -29,8 +29,8 @@
      SYSCON_PDRUNCFG_PDEN_SRAM0_MASK | SYSCON_PDRUNCFG_PDEN_SRAM1_MASK | SYSCON_PDRUNCFG_PDEN_SRAM2_MASK)
 
 /* Defines used by the sleep code */
-#define LPC_CLOCK_INTERNAL_IRC BOARD_BootClockFRO12M
-#define LPC_CLOCK_RUN          BOARD_BootClockFROHF48M
+#define LPC_CLOCK_INTERNAL_IRC BOARD_BootClockFRO12M()
+#define LPC_CLOCK_RUN          BOARD_BootClockFROHF48M()
 
 #define DEVICE_ID_LENGTH       24