RDKEMW-3737:Upgrading the halif-headers as iarmmgr

Reason for change: Removing the plat_ir.h from iarmmgr
Test Procedure: Build and verify

Author: Sonajeya31

conf/include/rdk-headers-versions.inc

@@ -29,9 +29,9 @@ PV:pn-tvsettings-hal-headers = "2.2.0"
 PR:pn-tvsettings-hal-headers = "r0"
 SRCREV:pn-tvsettings-hal-headers ="20378fd9a044dc0ebd63a8257ab63f4a643fa05e"
 
-PV:pn-iarmmgrs-hal-headers = "1.0.11"
+PV:pn-iarmmgrs-hal-headers = "1.0.12"
 PR:pn-iarmmgrs-hal-headers = "r0"
-SRCREV:pn-iarmmgrs-hal-headers = "27db67b77bcb2c520a19e0235740d3e3903bb619"
+SRCREV:pn-iarmmgrs-hal-headers = "2ec0b6f6caa662f86963e58c417e8e54e221c99b"
 
 PV:pn-iarmbus-headers = "1.0.1"
 PR:pn-iarmbus-headers = "r0"