av1.cmake: AOM_AV1_ENCODER_INTRIN_CRC32 -> _ARM_CRC32

this better matches the file arm/hash_crc32.c and the associated
HAVE_ARM_CRC32 variable

Change-Id: I434508e9f6db5ef2b2f8a613afe132bbf2075cd2
diff --git a/av1/av1.cmake b/av1/av1.cmake
index ace30c5..d689330 100644
--- a/av1/av1.cmake
+++ b/av1/av1.cmake
@@ -368,7 +368,7 @@
             "${AOM_ROOT}/av1/encoder/arm/neon/wedge_utils_neon.c"
             "${AOM_ROOT}/av1/encoder/arm/neon/temporal_filter_neon.c")
 
-list(APPEND AOM_AV1_ENCODER_INTRIN_CRC32
+list(APPEND AOM_AV1_ENCODER_INTRIN_ARM_CRC32
             "${AOM_ROOT}/av1/encoder/arm/crc32/hash_crc32.c")
 
 list(APPEND AOM_AV1_ENCODER_INTRIN_MSA
@@ -639,10 +639,10 @@
 
     if(HAVE_ARM_CRC32)
       if(CONFIG_AV1_ENCODER)
-        if(AOM_AV1_ENCODER_INTRIN_CRC32)
+        if(AOM_AV1_ENCODER_INTRIN_ARM_CRC32)
           add_intrinsics_object_library("${AOM_ARM_CRC32_FLAG}" "crc32"
                                         "aom_av1_encoder"
-                                        "AOM_AV1_ENCODER_INTRIN_CRC32")
+                                        "AOM_AV1_ENCODER_INTRIN_ARM_CRC32")
         endif()
       endif()
     endif()