Add signed intptr_t given that a) it is standard type and
b) uintptr_t is in tree.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

 arch/mips/include/asm/fw/cfe/cfe_api.h |    3 ---
 include/linux/types.h                  |    1 +
 lib/zstd/common/zstd_deps.h            |   18 ------------------
 3 files changed, 1 insertion(+), 21 deletions(-)

--- a/arch/mips/include/asm/fw/cfe/cfe_api.h
+++ b/arch/mips/include/asm/fw/cfe/cfe_api.h
@@ -17,9 +17,6 @@
 #include <linux/types.h>
 #include <linux/string.h>
 
-typedef long intptr_t;
-
-
 /*
  * Constants
  */
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -35,6 +35,7 @@ typedef __kernel_uid16_t        uid16_t;
 typedef __kernel_gid16_t        gid16_t;
 
 typedef unsigned long		uintptr_t;
+typedef long			intptr_t;
 
 #ifdef CONFIG_HAVE_UID16
 /* This is defined by include/asm-{arch}/posix_types.h */
--- a/lib/zstd/common/zstd_deps.h
+++ b/lib/zstd/common/zstd_deps.h
@@ -105,21 +105,3 @@ static uint64_t ZSTD_div64(uint64_t dividend, uint32_t divisor) {
 
 #endif /* ZSTD_DEPS_IO */
 #endif /* ZSTD_DEPS_NEED_IO */
-
-/*
- * Only requested when MSAN is enabled.
- * Need:
- * intptr_t
- */
-#ifdef ZSTD_DEPS_NEED_STDINT
-#ifndef ZSTD_DEPS_STDINT
-#define ZSTD_DEPS_STDINT
-
-/*
- * The Linux Kernel doesn't provide intptr_t, only uintptr_t, which
- * is an unsigned long.
- */
-typedef long intptr_t;
-
-#endif /* ZSTD_DEPS_STDINT */
-#endif /* ZSTD_DEPS_NEED_STDINT */