Update the document for ramdump

crash tool has to be updated to 8.0.2 to understand kernel 6.1

Bug: 270657304
Test: do the ramdump
Change-Id: Idb8557c6cd18fb46b99bc134c4d3f9df79baa0ca
diff --git a/docs/debug/ramdump.md b/docs/debug/ramdump.md
index 771c608..020f054 100644
--- a/docs/debug/ramdump.md
+++ b/docs/debug/ramdump.md
@@ -73,8 +73,8 @@
 Download the source code and build it as follows. This needs to be done only once.
 
 ```shell
-$ wget https://github.com/crash-utility/crash/archive/refs/tags/8.0.1.tar.gz -O - | tar xzvf
-$ make -C crash-8.0.1 target=ARM64
+$ wget https://github.com/crash-utility/crash/archive/refs/tags/8.0.2.tar.gz -O - | tar xzv
+$ make -j -C crash-8.0.2 target=ARM64
 ```
 
 ### Obtaining vmlinux
@@ -101,7 +101,7 @@
 ### Running crash(8) with the RAM dump and the kernel image
 
 ```shell
-$ crash-8.0.1/crash ramdump vmlinux
+$ crash-8.0.2/crash ramdump vmlinux
 ```
 
 You can now analyze the RAM dump using the various commands that crash(8) provides. For example, `bt <pid>` command shows the stack trace of a process.