ISSI driver compile error fix (#9169)

drivers/issi/is31fl3731.c

@@ -64,7 +64,7 @@ uint8_t g_twi_transfer_buffer[20];
 uint8_t g_pwm_buffer[DRIVER_COUNT][144];
 bool    g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
 
-uint8_t g_led_control_registers[DRIVER_COUNT][18]             = {{0}, {0}};
+uint8_t g_led_control_registers[DRIVER_COUNT][18]             = {{0}};
 bool    g_led_control_registers_update_required[DRIVER_COUNT] = {false};
 
 // This is the bit pattern in the LED control registers