Allow input config to be under /vendor/odm

Input config should be under /odm when it's "device-specific",
instead of /vendor (for "SoC-specific").

However, not all device have /odm partition so having the fallback
symlink: /odm -> /vendor/odm is important

Bug: 112880217
Test: build
Change-Id: I294e2b172d06d58a42c51c128e448c7644f854dc

private/file_contexts

@@ -353,9 +353,9 @@
 /(odm|vendor/odm)/framework(/.*)?             u:object_r:vendor_framework_file:s0
 
 # Input configuration
-/(odm|vendor)/usr/keylayout(/.*)?.kl           u:object_r:vendor_keylayout_file:s0
-/(odm|vendor)/usr/keychars(/.*)?.kcm            u:object_r:vendor_keychars_file:s0
-/(odm|vendor)/usr/idc(/.*)?.idc                 u:object_r:vendor_idc_file:s0
+/(odm|vendor|vendor/odm)/usr/keylayout(/.*)?.kl            u:object_r:vendor_keylayout_file:s0
+/(odm|vendor|vendor/odm)/usr/keychars(/.*)?.kcm            u:object_r:vendor_keychars_file:s0
+/(odm|vendor|vendor/odm)/usr/idc(/.*)?.idc                 u:object_r:vendor_idc_file:s0
 
 /oem(/.*)?              u:object_r:oemfs:s0