Fix suspect DEBUGASSERT() like PR765

As pointed out by Şükrü Bahadır Arslan in PR765, function calls
inside DEBUGASSERT() will not be executed if DEBUGASSERT is
disabled. Following that PR, I searched for other instances of
similar errors and found four. As there are many thousands of
DEBUGASSERT in the code, this is *not* an exhaustive fix.

arch/arm/src/tms570/tms570_boot.c:
* In function arm_boot(), call tms570_memtest_complete()
  outside of the DEBUGASSERT(). Otherwise, if DEBUGASSERT is
  disabled, we will never rendezvous with completion of the
  test. (Two instances of this fix.)

arch/arm/src/tms570/tms570_clockconfig.c:
* In function tms570_clockconfig(), call
  tms570_efc_selftest_complete() outside of the DEBUGASSERT()
  for the same reason as above.

boards/arm/sam34/sam4s-xplained-pro/src/sam_boot.c:
* In function board_late_initialize(), call
  sam_watchdog_initialize() outside of the DEBUGASSERT() for
  the same reason as above.

arch/arm/src/tms570/tms570_boot.c

@@ -297,6 +297,10 @@ static void go_nx_start(void)
 
 void arm_boot(void)
 {
+#ifdef CONFIG_TMS570_SELFTEST
+  int check;
+#endif /* CONFIG_TMS570_SELFTEST */
+
   /* Enable CPU Event Export.
    *
    * This allows the CPU to signal any single-bit or double-bit errors
@@ -340,7 +344,8 @@ void arm_boot(void)
   /* Run the memory selftest on CPU RAM. */
 
   tms570_memtest_start(PBIST_RINFOL_ESRAM1_RAM);
-  DEBUGASSERT(tms570_memtest_complete() == OK);
+  check = tms570_memtest_complete();
+  DEBUGASSERT(check == OK);
 #endif /* CONFIG_TMS570_SELFTEST */
 
   /* Initialize CPU RAM. */
@@ -379,7 +384,9 @@ void arm_boot(void)
 
   /* Wait for the memory test to complete */
 
-  DEBUGASSERT(tms570_memtest_complete() == OK);
+  check = tms570_memtest_complete();
+  DEBUGASSERT(check == OK);
+  UNUSED(check);
 #endif /* CONFIG_TMS570_SELFTEST */
 
 #ifdef CONFIG_TMS570_MIBASPI1

arch/arm/src/tms570/tms570_clockconfig.c

@@ -816,6 +816,10 @@ static void tms570_eclk_configure(void)
 
 void tms570_clockconfig(void)
 {
+#ifdef CONFIG_TMS570_SELFTEST
+  int check;
+#endif /* CONFIG_TMS570_SELFTEST */
+
   /* Configure PLL control registers and enable PLLs. */
 
    tms570_pll_setup();
@@ -839,8 +843,10 @@ void tms570_clockconfig(void)
 #ifdef CONFIG_TMS570_SELFTEST
   /* Wait for eFuse controller self-test to complete and check results */
 
-  DEBUGASSERT(tms570_efc_selftest_complete() == 0);
-#endif
+  check = tms570_efc_selftest_complete();
+  DEBUGASSERT(check == 0);
+  UNUSED(check);
+#endif /* CONFIG_TMS570_SELFTEST */
 
   /* Set up flash address and data wait states. */
 

boards/arm/sam34/sam4s-xplained-pro/src/sam_boot.c

@@ -89,7 +89,9 @@ void board_late_initialize(void)
 #if (defined(CONFIG_SAM34_WDT) && !defined(CONFIG_WDT_DISABLE_ON_RESET))
   /* Configure watchdog timer and enable kicker kernel thread. */
 
-  DEBUGASSERT(sam_watchdog_initialize() >= 0);
+  int check = sam_watchdog_initialize();
+  DEBUGASSERT(check >= 0);
+  UNUSED(check);
 #endif
 
 #ifndef CONFIG_ARCH_LEDS