nuttx: fix error: use of undeclared identifier 'ENOMEM'
nuttx: fix error: use of undeclared identifier 'ENOMEM'

Signed-off-by: Xiang Xiao <e94589cd03b1b3246d4b01f43c18f48c33b5de3a@xiaomi.com>

apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble