posix: posix_types.h: simplify conditions on pthread types

Simplify the conditions for pthread type declaration

Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>

Author: cfriedt

include/zephyr/posix/posix_types.h

@@ -87,12 +87,10 @@ struct pthread_attr {
 	uint32_t details[2];
 };
 
-#if defined(CONFIG_MINIMAL_LIBC) || defined(CONFIG_PICOLIBC) || defined(CONFIG_ARMCLANG_STD_LIBC) \
-	|| defined(CONFIG_ARCMWDT_LIBC)
+#if !defined(CONFIG_NEWLIB_LIBC)
 typedef struct pthread_attr pthread_attr_t;
-#endif
-
 BUILD_ASSERT(sizeof(pthread_attr_t) >= sizeof(struct pthread_attr));
+#endif
 
 typedef uint32_t pthread_t;
 typedef uint32_t pthread_spinlock_t;
@@ -107,11 +105,10 @@ struct pthread_mutexattr {
 	unsigned char type: 2;
 	bool initialized: 1;
 };
-#if defined(CONFIG_MINIMAL_LIBC) || defined(CONFIG_PICOLIBC) || defined(CONFIG_ARMCLANG_STD_LIBC) \
-	|| defined(CONFIG_ARCMWDT_LIBC)
+#if !defined(CONFIG_NEWLIB_LIBC)
 typedef struct pthread_mutexattr pthread_mutexattr_t;
-#endif
 BUILD_ASSERT(sizeof(pthread_mutexattr_t) >= sizeof(struct pthread_mutexattr));
+#endif
 
 /* Condition variables */
 typedef uint32_t pthread_cond_t;
@@ -120,11 +117,10 @@ struct pthread_condattr {
 	clockid_t clock;
 };
 
-#if defined(CONFIG_MINIMAL_LIBC) || defined(CONFIG_PICOLIBC) || defined(CONFIG_ARMCLANG_STD_LIBC) \
-	|| defined(CONFIG_ARCMWDT_LIBC)
+#if !defined(CONFIG_NEWLIB_LIBC)
 typedef struct pthread_condattr pthread_condattr_t;
-#endif
 BUILD_ASSERT(sizeof(pthread_condattr_t) >= sizeof(struct pthread_condattr));
+#endif
 
 /* Barrier */
 typedef uint32_t pthread_barrier_t;
@@ -141,14 +137,12 @@ struct pthread_once {
 	bool flag;
 };
 
-#if defined(CONFIG_MINIMAL_LIBC) || defined(CONFIG_PICOLIBC) || defined(CONFIG_ARMCLANG_STD_LIBC) \
-	|| defined(CONFIG_ARCMWDT_LIBC)
+#if !defined(CONFIG_NEWLIB_LIBC)
 typedef uint32_t pthread_key_t;
 typedef struct pthread_once pthread_once_t;
-#endif
-
 /* Newlib typedefs pthread_once_t as a struct with two ints */
 BUILD_ASSERT(sizeof(pthread_once_t) >= sizeof(struct pthread_once));
+#endif
 
 #ifdef __cplusplus
 }