Update Sharesheet CTS ECT test to check for low-ram

The direct share row is hidden entirely on low-ram devices. This
hides any supplied EXTRA_CHOOSER_TARGETS. Update test to
consider low-ram.

Fixes: 159263754
Test: manual
Change-Id: Ie9c1a13fd2b0f0d2c953090e64db7586a4838105
1 file changed