SQUASH fix build time

sys/kern/src/arch/arm_m.rs

@@ -543,7 +543,7 @@ pub const fn compute_region_extension_data(
     // RLAR = our upper bound; note that enable (bit 0) is not set, because
     // it's possible to hard-fault midway through region configuration if
     // address and size are incompatible while the region is enabled.
-    let rlar_disabled = (base + size - 32); // upper bound
+    let rlar_disabled = base + size - 32; // upper bound
 
     // RBAR = the base
     let rbar = (xn as u32)
@@ -574,7 +574,7 @@ pub fn apply_memory_protection(task: &task::Task) {
         let ext = &region.arch_data;
 
         unsafe {
-            let rlar_disabled = ext.rlar_disabled | (index as u32) << 1; // AttrIdx
+            let rlar_disabled = ext.rlar_disabled | (i as u32) << 1; // AttrIdx
             mpu.rnr.write(rnr);
             mpu.rlar.write(rlar_disabled); // configure but leave disabled
             if rnr < 4 {