coral: replace signing keys for positivo

BUG=b:123971162
TEST=build and verify with chromeos-firmwareupdate
Cq-Depend: chrome-internal:1179235

Change-Id: Ib8ebee55436e0b1b029aa44c445598066060b4c7
Reviewed-on: https://chromium-review.googlesource.com/1572880
Commit-Ready: YH Lin <yueherngl@chromium.org>
Tested-by: YH Lin <yueherngl@chromium.org>
Reviewed-by: YH Lin <yueherngl@chromium.org>
(cherry picked from commit d900dd526aa40cd571dfcff6c978a1f3a588697d)
diff --git a/overlay-coral/chromeos-base/chromeos-config-bsp-coral/chromeos-config-bsp-coral-0.0.1-r41.ebuild b/overlay-coral/chromeos-base/chromeos-config-bsp-coral/chromeos-config-bsp-coral-0.0.1-r42.ebuild
similarity index 100%
rename from overlay-coral/chromeos-base/chromeos-config-bsp-coral/chromeos-config-bsp-coral-0.0.1-r41.ebuild
rename to overlay-coral/chromeos-base/chromeos-config-bsp-coral/chromeos-config-bsp-coral-0.0.1-r42.ebuild
diff --git a/overlay-coral/chromeos-base/chromeos-config-bsp-coral/files/model.yaml b/overlay-coral/chromeos-base/chromeos-config-bsp-coral/files/model.yaml
index 335d4a3..5e21f75 100644
--- a/overlay-coral/chromeos-base/chromeos-config-bsp-coral/files/model.yaml
+++ b/overlay-coral/chromeos-base/chromeos-config-bsp-coral/files/model.yaml
@@ -148,6 +148,9 @@
         - $whitelabel-tag: "gsa"
           $brand-code: "RIKG"
           $key-id: "CORALK"
+        - $whitelabel-tag: "positivo"
+          $brand-code: "EDHM"
+          $key-id: "CORALO"
         # Workaround to make it compatible with "ctl"
         - $whitelabel-tag: "to-be-determined-bt-loem1"
           $brand-code: "WXZG"
@@ -180,6 +183,12 @@
         - $whitelabel-tag: "gsa"
           $brand-code: "TVRZ"
           $key-id: "CORALK"
+        - $whitelabel-tag: "xma"
+          $brand-code: "HKGT"
+          $key-id: "CORALC"
+        - $whitelabel-tag: "positivo"
+          $brand-code: "HTPV"
+          $key-id: "CORALO"
         # Workaround to make it compatible with "ctl"
         - $whitelabel-tag: "to-be-determined-bt-loem1"
           $brand-code: "FBTP"