tools/squashfs4: update to 4.7.5

Release Note:
  https://github.com/plougher/squashfs-tools/releases/tag/4.7.5

Remove upstreamed patch:
- 0001-mksquashfs-don-t-create-duplicate-virtual-real-disk-.patch

Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: openwrt/openwrt#22249
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

Author: DragonBluep

tools/squashfs4/Makefile

@@ -8,14 +8,14 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=squashfs4
 PKG_CPE_ID:=cpe:/a:phillip_lougher:squashfs
-PKG_VERSION:=4.7.4
-PKG_RELEASE=2
+PKG_VERSION:=4.7.5
+PKG_RELEASE=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/plougher/squashfs-tools
-PKG_SOURCE_DATE:=2025-11-10
-PKG_SOURCE_VERSION:=53e5a67aac42e0bc9ad4a249156d7d549ce7436c
-PKG_MIRROR_HASH:=7ce390d95af4b7b4ce768cec18aeb9ac61b8ca413d0ced2c42a81446d9dd8690
+PKG_SOURCE_DATE:=2026-03-02
+PKG_SOURCE_VERSION:=708c59ae80853b0845017c33b42e56061cc546cd
+PKG_MIRROR_HASH:=504dbc8e6709ac904c4e6929ebba6f88c125b2b9775371f0cd5d9967bfba89e1
 
 HOST_BUILD_PARALLEL:=1
 

tools/squashfs4/patches/0001-fix-mksquashfs-use-st_atimespec-on-macOS.patch

@@ -0,0 +1,25 @@
+From f88f4a659d6ab432a57e90fe2f6191149c6b343f Mon Sep 17 00:00:00 2001
+From: Rui Chen <rui@chenrui.dev>
+Date: Sun, 1 Mar 2026 22:10:34 -0500
+Subject: [PATCH] fix(mksquashfs): use st_atimespec on macOS
+
+Darwin struct stat does not expose st_atim. Use st_atimespec on macOS while keeping existing behavior on other platforms.
+
+Signed-off-by: Rui Chen <rui@chenrui.dev>
+---
+ squashfs-tools/mksquashfs.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/squashfs-tools/mksquashfs.c
++++ b/squashfs-tools/mksquashfs.c
+@@ -3372,7 +3372,9 @@ static struct inode_info *lookup_inode4(
+ 		 *   lazytime or relatime and the file has been created or
+ 		 *   modified since the last access.
+ 		 */
+-#ifdef st_atime
++#ifdef __APPLE__
++		memset(&buf->st_atimespec, 0, sizeof(buf->st_atimespec));
++#elif defined(st_atime)
+ 		memset(&buf->st_atim, 0, sizeof(buf->st_atim));
+ #else
+ 		memset(&buf->st_atime, 0, sizeof(buf->st_atime));