Fix CSR query issue to enable new CSR protocal

Author: ericxu233

src/acl_kernel_if.cpp

@@ -1052,6 +1052,15 @@ int acl_kernel_if_post_pll_config_init(acl_kernel_if *kern) {
       // Register addresses are pushed back since previous versions
       // doesn't have the start register
       kern->cra_address_offset = 0;
+    } else {
+      // else statement in case an old CSR version is queried before we program
+      // our new aocx, it makes sure that the offset is set correctly when we
+      // qeury the correct CSR aocx from the newly compile aocx. Old CSR
+      // versions may be queried since users may trigger context creation
+      // whenever they try to query device info which would lead to reading the
+      // CSR before programming the actual aocx and it would read from the
+      // defualt aocx provided by the BSP
+      kern->cra_address_offset = 8;
     }
   } else {
     kern->csr_version = 0;