power: qpnp-smbcharger: fix 150mA setting in high current cases

The current code resigns to setting 150mA if it cannot find a
suitable high USB current to configure.
However, the implementation has a bug where it ends up configuring
100mA instead of 150mA.

Fix it.

CRs-Fixed: 772065
Change-Id: I24bcc684bd1348f3a84a7990f45c0c8810f8b4f7
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>