wext: Fix musl build error

Building wpa_supplicant with the musl C library fails since musl does
not define type names such as '__uint32_t'. To support building
wpa_supplicant with the musl C library use the integer types declared in
the ISO C standard header file <stdint.h>.

Signed-off-by: Jörg Krause <jkrause@posteo.de>

src/drivers/linux_wext.h

@@ -19,13 +19,13 @@
 #define _LINUX_SOCKET_H
 #define _LINUX_IF_H
 
-#include <sys/types.h>
+#include <stdint.h>
 #include <net/if.h>
-typedef __uint32_t __u32;
-typedef __int32_t __s32;
-typedef __uint16_t __u16;
-typedef __int16_t __s16;
-typedef __uint8_t __u8;
+typedef uint32_t __u32;
+typedef int32_t __s32;
+typedef uint16_t __u16;
+typedef int16_t __s16;
+typedef uint8_t __u8;
 #ifndef __user
 #define __user
 #endif /* __user */