chore: add v1.2.5 release

Signed-off-by: Sunyanan Choochotkaew <sunyanan.choochotkaew1@ibm.com>

Author: sunya-ch

document/docs/release/alpha-1.2.md

@@ -0,0 +1,6 @@
+# Alpha 1.2 Channel
+
+## v1.2.5
+
+- support multiple resource names defined in NicClusterPolicy for Mellanox Host Device use case
+- remove unnecessary selection policy call when network devices have already selected by the device plugin

document/docs/release/index.md

@@ -3,6 +3,7 @@
 Channel|Version|IPVLAN L2/L3|AWS IPVLAN|Mellanox Host Device|IP-less (zero host block)|Multi-config IPAM
 ---|---|---|---|---|---|---
 [stable (default)](./stable.md)|v1.0.5|✓|X|X|X|X
-[stable-1.2](./stable-1.2.md)|v1.2.4|✓|X|X|X|X
+[stable-1.2](./stable-1.2.md)|v1.2.4|✓|✓|✓|X|X
 [beta](./beta.md)|v1.2.3|✓|✓|✓|X|X
 [alpha](./alpha.md)|v1.3.0|✓|✓|✓|✓|✓
+[alpha-1.2](./alpha-1.2.md)|v1.2.5|✓|✓|✓|X|X