Use _BV32 to avoid name conflict

Marlin/src/HAL/HAL_LPC1768/WInterrupts.cpp

@@ -130,8 +130,8 @@ extern "C" void GpioDisableInt(const uint32_t port, const uint32_t pin) {
   }
 }
 
-bool isPowerOf2(unsigned int n) {
-  return n == 1 || (n & (n - 1)) == 0;
+constexpr bool isPowerOf2(const uint16_t n) {
+  return IS_POWER_OF_2(n);
 }
 
 #if 0