squashfs: make disable-4k-align a parameter

BUG: 29388879
Change-Id: I121d2b76db5fb269e2f7152abb2e78098437a0d5
Signed-off-by: Mohamad Ayyash <mkayyash@google.com>
diff --git a/tools/releasetools/build_image.py b/tools/releasetools/build_image.py
index 2463203..d78896a 100755
--- a/tools/releasetools/build_image.py
+++ b/tools/releasetools/build_image.py
@@ -406,6 +406,8 @@
       build_command.extend(["-z", prop_dict["squashfs_compressor"]])
     if "squashfs_compressor_opt" in prop_dict:
       build_command.extend(["-zo", prop_dict["squashfs_compressor_opt"]])
+    if "squashfs_disable_4k_align" in prop_dict and prop_dict.get("squashfs_disable_4k_align") == "true":
+      build_command.extend(["-a"])
   elif fs_type.startswith("f2fs"):
     build_command = ["mkf2fsuserimg.sh"]
     build_command.extend([out_file, prop_dict["partition_size"]])
@@ -549,6 +551,7 @@
     copy_prop("has_ext4_reserved_blocks", "has_ext4_reserved_blocks")
     copy_prop("system_squashfs_compressor", "squashfs_compressor")
     copy_prop("system_squashfs_compressor_opt", "squashfs_compressor_opt")
+    copy_prop("system_squashfs_disable_4k_align", "squashfs_disable_4k_align")
     copy_prop("system_base_fs_file", "base_fs_file")
   elif mount_point == "data":
     # Copy the generic fs type first, override with specific one if available.
@@ -566,6 +569,7 @@
     copy_prop("has_ext4_reserved_blocks", "has_ext4_reserved_blocks")
     copy_prop("vendor_squashfs_compressor", "squashfs_compressor")
     copy_prop("vendor_squashfs_compressor_opt", "squashfs_compressor_opt")
+    copy_prop("vendor_squashfs_disable_4k_align", "squashfs_disable_4k_align")
     copy_prop("vendor_base_fs_file", "base_fs_file")
   elif mount_point == "oem":
     copy_prop("fs_type", "fs_type")