fdt: Use bswapN instead of bswap_N

Fixes the libfdt enabled build for hosts that have <machine/bswap.h>.

The code at the beginning of qemu/bswap.h is attempting to standardize
on bswapN.  In the case of CONFIG_MACHINE_BSWAP_H, this is all we get.
In the case of CONFIG_BYTESWAP_H, we get bswap_N from the system header
and then wrap these with inline functions to get bswapN.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

include/libfdt_env.h

@@ -22,15 +22,15 @@
 #include "qemu/bswap.h"
 
 #ifdef HOST_WORDS_BIGENDIAN
-#define fdt32_to_cpu(x)		(x)
-#define cpu_to_fdt32(x)		(x)
-#define fdt64_to_cpu(x)		(x)
-#define cpu_to_fdt64(x)		(x)
+#define fdt32_to_cpu(x)  (x)
+#define cpu_to_fdt32(x)  (x)
+#define fdt64_to_cpu(x)  (x)
+#define cpu_to_fdt64(x)  (x)
 #else
-#define fdt32_to_cpu(x)		(bswap_32((x)))
-#define cpu_to_fdt32(x)		(bswap_32((x)))
-#define fdt64_to_cpu(x)		(bswap_64((x)))
-#define cpu_to_fdt64(x)		(bswap_64((x)))
+#define fdt32_to_cpu(x)  bswap32(x)
+#define cpu_to_fdt32(x)  bswap32(x)
+#define fdt64_to_cpu(x)  bswap64(x)
+#define cpu_to_fdt64(x)  bswap64(x)
 #endif
 
 #endif /* _LIBFDT_ENV_H */