tuna: PowerHAL: Change obsolete designated initializers syntax

Designated initializers syntax which is used to initialize
HAL_MODULE_INFO_SYM is obsolete since GCC 2.5:
http://gcc.gnu.org/onlinedocs/gcc/Designated-Inits.html

This patch changes syntax to usual one.

Cherry-picked from http://omapzoom.org/?p=device/ti/blaze_tablet.git;a=commit;h=361e9eab2dd455588327612c31623396725fdb1a

Change-Id: I7ed930bd6cf0f44f1503947c9abbc93a9ef99821