Use runtime ABI instead of hw architecture when processing microdumps

src/processor/testdata/microdump.stackwalk-arm.out

Index: src/processor/testdata/microdump.stackwalk-arm.out
diff --git a/src/processor/testdata/microdump.stackwalk-arm.out b/src/processor/testdata/microdump.stackwalk-arm.out
index 4fbeb8f158137d937ba065b766f57c733feb1d4e..2b82dab9d3076ee83e2c60e636fc292502a088cf 100644
--- a/src/processor/testdata/microdump.stackwalk-arm.out
+++ b/src/processor/testdata/microdump.stackwalk-arm.out
@@ -1,6 +1,6 @@
 Operating system: Android
                   OS VERSION INFO
-CPU: armv7l
+CPU: arm
      2 CPUs
 
 Crash reason:  
@@ -9,28 +9,45 @@ Process uptime: not available
 
 Thread 0 (crashed)
  0  breakpad_unittests!MicrodumpWriterTest_Setup_Test::TestBody [gtest.h : 1481 + 0x1]
- 
+     r0 = 0x00000000    r1 = 0x00000000    r2 = 0x00000000    r3 = 0x00000000
+     r4 = 0xffea6900    r5 = 0xffea68f0    r6 = 0xffea68f8    r7 = 0xffea6904
+     r8 = 0xffea68e0    r9 = 0xffea6900   r10 = 0xffea6930   r12 = 0x00000000
+     fp = 0x00000ea2    sp = 0xffea68c0    lr = 0xaaaeb307    pc = 0xaaaeb307
     Found by: given as instruction pointer in context
  1  breakpad_unittests!testing::Test::Run [gtest.cc : 2435 + 0x17]
- 
+     r4 = 0xaab431dc    r5 = 0xab20d7d0    r6 = 0xab203478    r7 = 0x00000149
+     r8 = 0xab203588    r9 = 0xab20d7d0   r10 = 0xffea6f60    fp = 0xab2034d8
+     sp = 0xffea6f28    pc = 0xaab0a741
     Found by: call frame info
  2  breakpad_unittests!testing::TestInfo::Run [gtest.cc : 2610 + 0x5]
- 
+     r4 = 0xab205448    r5 = 0xab203478    r6 = 0xf6d21cdd    r7 = 0x00000149
+     r8 = 0xab203588    r9 = 0xab20d7d0   r10 = 0xffea6f60    fp = 0xab2034d8
+     sp = 0xffea6f50    pc = 0xaab0a875
     Found by: call frame info
  3  breakpad_unittests!testing::TestCase::Run [gtest.cc : 2728 + 0x3]
- 
+     r4 = 0xab2054c8    r5 = 0x00000000    r6 = 0xf6d21cdd    r7 = 0x00000149
+     r8 = 0xab203478    r9 = 0xab203588   r10 = 0x00000001    fp = 0xab2034d8
+     sp = 0xffea6f90    pc = 0xaab0a8fd
     Found by: call frame info
  4  breakpad_unittests!testing::internal::UnitTestImpl::RunAllTests [gtest.cc : 4591 + 0x3]
- 
+     r4 = 0xab203478    r5 = 0xab203588    r6 = 0x00000000    r7 = 0x00000001
+     r8 = 0x00000000    r9 = 0xab2047f0   r10 = 0x00000001    fp = 0xab2034d8
+     sp = 0xffea6fc0    pc = 0xaab0aafd
     Found by: call frame info
  5  breakpad_unittests!testing::UnitTest::Run [gtest.cc : 2418 + 0x5]
- 
+     r4 = 0x00000000    r5 = 0xab203478    r6 = 0x00000002    r7 = 0xaaae2c19
+     r8 = 0x00000000    r9 = 0x00000000   r10 = 0x00000000    fp = 0xffea706c
+     sp = 0xffea7018    pc = 0xaab09a61
     Found by: call frame info
  6  breakpad_unittests!main [gtest.h : 2326 + 0x3]
- 
+     r4 = 0xffea702c    r5 = 0xffea7074    r6 = 0x00000002    r7 = 0xaaae2c19
+     r8 = 0x00000000    r9 = 0x00000000   r10 = 0x00000000    fp = 0xffea706c
+     sp = 0xffea7028    pc = 0xaaae2c3b
     Found by: call frame info
  7  libc.so + 0x11e9d
- 
+     r4 = 0xffea7074    r5 = 0xffea7080    r6 = 0x00000002    r7 = 0xaaae2c19
+     r8 = 0x00000000    r9 = 0x00000000   r10 = 0x00000000    fp = 0xffea706c
+     sp = 0xffea7040    pc = 0xf7025e9f
     Found by: call frame info
 
 Loaded modules: