[AArch64] Use NPM for cost model tests. NFC

As per the other tests, this switches the run lines back to using the
NPM via
-passes='print<cost-model>' -cost-kind=throughput 2>&1 -disable-output

llvm/test/Analysis/CostModel/AArch64/arith.ll

@@ -1,5 +1,5 @@
 ; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
-; RUN: opt -cost-model -analyze -mtriple=aarch64-linux-gnu < %s | FileCheck %s
+; RUN: opt -passes='print<cost-model>' -cost-kind=throughput 2>&1 -disable-output -mtriple=aarch64-linux-gnu < %s | FileCheck %s
 
 define void @i1() {
 ; CHECK-LABEL: 'i1'

llvm/test/Analysis/CostModel/AArch64/cast.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
-; RUN: opt -cost-model -analyze -mtriple=aarch64-none-linux-gnueabi %s | FileCheck --check-prefixes=CHECK,CHECK-NOFP16 %s
-; RUN: opt -cost-model -analyze -mtriple=aarch64-none-linux-gnueabi -mattr=+fullfp16 %s | FileCheck --check-prefixes=CHECK,CHECK-FP16 %s
+; RUN: opt -passes='print<cost-model>' 2>&1 -disable-output -mtriple=aarch64-none-linux-gnueabi %s | FileCheck --check-prefixes=CHECK,CHECK-NOFP16 %s
+; RUN: opt -passes='print<cost-model>' 2>&1 -disable-output -mtriple=aarch64-none-linux-gnueabi -mattr=+fullfp16 %s | FileCheck --check-prefixes=CHECK,CHECK-FP16 %s
 
 define void @ext() {
 ; CHECK-LABEL: 'ext'

llvm/test/Analysis/CostModel/AArch64/min-max.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
-; RUN: opt < %s -mtriple=aarch64-unknown-linux-gnu -cost-model -analyze -cost-kind=throughput | FileCheck %s --check-prefixes=CHECK,CHECK-NOF16
-; RUN: opt < %s -mtriple=aarch64-unknown-linux-gnu -mattr=+fullfp16 -cost-model -analyze -cost-kind=throughput | FileCheck %s --check-prefixes=CHECK,CHECK-F16
+; RUN: opt < %s -mtriple=aarch64-unknown-linux-gnu -passes='print<cost-model>' 2>&1 -disable-output -cost-kind=throughput | FileCheck %s --check-prefixes=CHECK,CHECK-NOF16
+; RUN: opt < %s -mtriple=aarch64-unknown-linux-gnu -mattr=+fullfp16 -passes='print<cost-model>' 2>&1 -disable-output -cost-kind=throughput | FileCheck %s --check-prefixes=CHECK,CHECK-F16
 
 define void @umin() {
 ; CHECK-LABEL: 'umin'