syscall: fix F_SETLK{,W} on linux/ppc64

Change-Id: Ia81675b0f01ceafada32bdd2bc59088016a7421e
Reviewed-on: https://go-review.googlesource.com/10043Reviewed-by: Ian Lance Taylor <iant@golang.org>

src/syscall/zerrors_linux_ppc64.go

@@ -366,9 +366,9 @@ const (
 	F_SETFD                          = 0x2
 	F_SETFL                          = 0x4
 	F_SETLEASE                       = 0x400
-	F_SETLK                          = 0xd
+	F_SETLK                          = 0x6
 	F_SETLK64                        = 0xd
-	F_SETLKW                         = 0xe
+	F_SETLKW                         = 0x7
 	F_SETLKW64                       = 0xe
 	F_SETOWN                         = 0x8
 	F_SETOWN_EX                      = 0xf

src/syscall/ztypes_linux_ppc64.go

@@ -549,7 +549,7 @@ type Sysinfo_t struct {
 	Totalhigh uint64
 	Freehigh  uint64
 	Unit      uint32
-	X_f       [0]byte
+	X_f       [0]uint8
 	Pad_cgo_1 [4]byte
 }