MIPS: math-emu: Avoid an assignment within if statement condition

MIPS: math-emu: Avoid an assignment within if statement condition

Move invocation of fpu_emu() to be out of if statement condition.

This makes code easier to follow and debug, and fixes a checkpatch
warning.

Signed-off-by: Aleksandar Markovic <[email protected]>
Cc: Douglas Leung <[email protected]>
Cc: Goran Ferenc <[email protected]>
Cc: James Hogan <[email protected]>
Cc: Maciej W. Rozycki <[email protected]>
Cc: Miodrag Dinic <[email protected]>
Cc: Paul Burton <[email protected]>
Cc: Petar Jovanovic <[email protected]>
Cc: Raghu Gandham <[email protected]>
Cc: [email protected]
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/17586/
Signed-off-by: Ralf Baechle <[email protected]>