Staging: mt29f_spinand: Indent to match open parenthesis

Fix alignment issues by properly indenting function parameters in
accordance to the kernel coding style. Checkpatch pointed out this
issue.

CHECK: Alignment should match open parenthesis

Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>