[apps/main] Move lockUnlockedPCBVersion to ion_main

Although we always include the on-boarding when releasing a firmware,
moving this method here costs nothing and prevents mistakes if we ever
decide to remove on-boarding.

apps/main.cpp

@@ -19,6 +19,10 @@ void ion_main(int argc, const char * const argv[]) {
 #else
 
 void ion_main(int argc, const char * const argv[]) {
+  /* Lock OTP on older devices to prevent garbage being written where the PCB
+   * version is read. */
+  Ion::Board::lockUnlockedPCBVersion();
+
   // Initialize Poincare::TreePool::sharedPool
   Poincare::Init();
 

apps/on_boarding/power_on_self_test.cpp

@@ -1,6 +1,5 @@
 #include "power_on_self_test.h"
 #include <apps/shared/post_and_hardware_tests.h>
-#include <ion/board.h>
 #include <ion/led.h>
 
 namespace OnBoarding {
@@ -9,10 +8,6 @@ KDColor PowerOnSelfTest::Perform() {
   KDColor previousLEDColor = Ion::LED::getColor();
   KDColor resultColor = KDColorWhite;
 
-  /* Lock OTP on older devices to prevent garbage being written where the PCB
-   * version is read. */
-  Ion::Board::lockUnlockedPCBVersion();
-
   // Screen tests
   bool screenTestsOK = Shared::POSTAndHardwareTests::VBlankOK() && (Shared::POSTAndHardwareTests::TextLCDGlyphFailures() <= k_textErrorsLimit);
   // We push a white screen so that the LCD Data test is invisible for the user.