Max post code file size per cycle setting

Let user could set POST code file size per cycle

The default size is 512 counts

Reason:
BMC may crash caused by nonstop saving POST code when BIOS has
some unusual behavior like PXE loop
Thus, BMC should set a limit size to prevent this risk

Test Case:
Manually send POST code to check the POST code file rotation

Signed-off-by: Bonnie Lo <Bonnie_Lo@wiwynn.com>
Change-Id: Ic7fbafe532a79123e6ae880a8a3506f9c397d933
diff --git a/meson_options.txt b/meson_options.txt
index c3d63fd..d877b97 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,2 +1,3 @@
 option('max-boot-cycle-count', type:'integer', min:1, max: 100, description: 'Maximum boot cycles for which the post codes should be persisted', value:100)
 option('bios-post-code-log', type:'feature',description:'bios post code log',value:'disabled')
+option('max-post-code-size-per-cycle', type:'integer', min:64, max: 1024, description: 'Maximum post code file size per cycle', value:512)