Test format on PPC fails with ENOTSUP when performing an update on an LSM tree

[1500810545:705109][20485:0x3fff6d05f150], t, file:wt-000010.lsm, WT_CURSOR.update: Unsupported cursor operation: Operation not supported

t: FAILED: row_update: update row 736 by key: Operation not supported

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#  RUN PARAMETERS

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abort=0

alter=1

auto_throttle=1

backups=0

bitcnt=3

bloom=1

bloom_bit_count=49

bloom_hash_count=32

bloom_oldest=0

cache=300

checkpoints=1

checksum=uncompressed

chunk_size=10

compaction=1

compatibility=none

compression=snappy

data_extend=0

data_source=lsm

delete_pct=5

dictionary=1

direct_io=0

encryption=none

evict_max=2

file_type=row-store

firstfit=0

huffman_key=0

huffman_value=0

in_memory=0

insert_pct=1

internal_key_truncation=0

internal_page_max=14

isolation=snapshot

key_gap=1

key_max=60

key_min=12

leaf_page_max=17

leak_memory=0

logging=1

logging_archive=0

logging_compression=lz4-noraw

logging_prealloc=1

long_running_txn=0

lsm_worker_threads=3

merge_max=17

mmap=1

modify_pct=1

ops=100000

prefix_compression=0

prefix_compression_min=1

quiet=1

read_pct=4

rebalance=1

repeat_data_pct=19

reverse=0

rows=100000

runs=1

salvage=1

split_pct=86

statistics=1

statistics_server=0

threads=15

timer=20

transaction_timestamps=0

transaction-frequency=7

value_max=1948

value_min=8

verify=1

wiredtiger_config=

write_pct=89

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