Disallow short enums for keymaster

The Keymaster module assumes the size of any enum type is 32 bits. This
change builds the keymaster module with -fno-short-enums, forcing enums to
be 32 bits wide.

Test: without this change, sizeof(keymaster_algorithm_t) == 1
      with this change, sizeof(keymaster_algorithm_t) == 4

Change-Id: I96d9b55ed38643d66e4c59194f80a850610daaef
1 file changed