Fix a Cursor leak

When cursor is done, the cursor must be closed to avoid cursor leak.

Change-Id: I627cf2c8a64a220d6fd104505b852daca0928190
Fix a Cursor leak

When cursor is done, the cursor must be closed to avoid cursor leak.

Change-Id: I5f750a6bb499f86d4c76da40d171e9edfe6981d2
Phone: Display toast message for blank USSD request

As per spec 24.080, ussd response string should be
between 1 - 160.
When user requests SEND_USSD with blank/no
input, display toast message prompting user
to enter valid input.

Bug: 7471891
Change-Id: Ic7b7b89e8a683011048a19cabd1d36a27bbae953
Merge "Phone: Display toast message for blank USSD request"
Merge "Fix a Cursor leak"
Merge "Fix a Cursor leak"
Merge branch 'master' into HEAD