ALSA: uapi: Fix typos and header inclusion in asound.h

The recent changes in uapi/asoundlib.h caused some build errors in
alsa-lib side because of a typo and the new included files.
Basically asound.h is supposed to be usable also on non-Linux systems,
so we've tried to avoid the Linux-specific include files.

This patch is an attempt to recover from those changes.

Fixes: 3ddee7f ("ALSA: Avoid using timespec for struct snd_pcm_status")
Fixes: 80fe743 ("ALSA: add new 32-bit layout for snd_pcm_mmap_status/control")
Link: https://lore.kernel.org/r/20191220153415.2740-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/uapi/sound/asound.h

@@ -26,7 +26,9 @@
 
 #if defined(__KERNEL__) || defined(__linux__)
 #include <linux/types.h>
+#include <asm/byteorder.h>
 #else
+#include <endian.h>
 #include <sys/ioctl.h>
 #endif
 
@@ -35,8 +37,6 @@
 #include <time.h>
 #endif
 
-#include <asm/byteorder.h>
-
 /*
  *  protocol version
  */
@@ -471,7 +471,7 @@ enum {
 
 #ifndef __KERNEL__
 /* explicit padding avoids incompatibility between i386 and x86-64 */
-typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)] __time_pad;
+typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad;
 
 struct snd_pcm_status {
 	snd_pcm_state_t state;		/* stream state */