x86/intel/quark: Fix ptr_ret.cocci warnings

x86/intel/quark: Fix ptr_ret.cocci warnings

arch/x86/platform/intel-quark/imr.c:280:1-3: WARNING: PTR_ERR_OR_ZERO can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Fengguang Wu <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Ong, Boon Leong <[email protected]>
Cc: Bryan O'Donoghue <[email protected]>
Cc: Darren Hart <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/20150219081432.GA21983@waimea
Signed-off-by: Ingo Molnar <[email protected]>