Enable mutex fast path for sem_wait and nxsem_wait also when priority inheritance is enabled

This enables the mutex fast path for nxsem_wait, nxsem_trywait and nxsem_post also when
the priority inheritance is enabled.

Author: jlaitine

libs/libc/semaphore/sem_post.c

@@ -128,9 +128,9 @@ int nxsem_post(FAR sem_t *sem)
 
 #ifndef CONFIG_LIBC_ARCH_ATOMIC
 
-  if ((sem->flags & SEM_TYPE_MUTEX)
-#  if defined(CONFIG_PRIORITY_PROTECT) || defined(CONFIG_PRIORITY_INHERITANCE)
-      && (sem->flags & SEM_PRIO_MASK) == SEM_PRIO_NONE
+  if (NXSEM_IS_MUTEX(sem)
+#  if defined(CONFIG_PRIORITY_PROTECT)
+      && (sem->flags & SEM_PRIO_MASK) != SEM_PRIO_PROTECT
 #  endif
       )
     {

libs/libc/semaphore/sem_trywait.c

@@ -122,9 +122,9 @@ int nxsem_trywait(FAR sem_t *sem)
 
 #ifndef CONFIG_LIBC_ARCH_ATOMIC
 
-  if ((sem->flags & SEM_TYPE_MUTEX)
-#if defined(CONFIG_PRIORITY_PROTECT) || defined(CONFIG_PRIORITY_INHERITANCE)
-      && (sem->flags & SEM_PRIO_MASK) == SEM_PRIO_NONE
+  if (NXSEM_IS_MUTEX(sem)
+#if defined(CONFIG_PRIORITY_PROTECT)
+      && (sem->flags & SEM_PRIO_MASK) != SEM_PRIO_PROTECT
 #endif
       )
     {

libs/libc/semaphore/sem_wait.c

@@ -150,9 +150,9 @@ int nxsem_wait(FAR sem_t *sem)
 
 #ifndef CONFIG_LIBC_ARCH_ATOMIC
 
-  if ((sem->flags & SEM_TYPE_MUTEX)
-#  if defined(CONFIG_PRIORITY_PROTECT) || defined(CONFIG_PRIORITY_INHERITANCE)
-      && (sem->flags & SEM_PRIO_MASK) == SEM_PRIO_NONE
+  if (NXSEM_IS_MUTEX(sem)
+#  if defined(CONFIG_PRIORITY_PROTECT)
+      && (sem->flags & SEM_PRIO_MASK) != SEM_PRIO_PROTECT
 #  endif
       )
     {