msm: kgsl: Declare some mmu functions as static inline

Declare those functions that simply call the mmu-specific function
pointer as static inline functions in the mmu header file. Also,
change the return type of the mmu stop function to void.

Change-Id: I4efd7901858c768eec16886c8410d362b918489b
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
diff --git a/drivers/gpu/msm/z180.c b/drivers/gpu/msm/z180.c
index 3ca9e18..2df4c80 100644
--- a/drivers/gpu/msm/z180.c
+++ b/drivers/gpu/msm/z180.c
@@ -464,7 +464,7 @@
 	    (ctrl & KGSL_CONTEXT_CTX_SWITCH)) {
 		KGSL_CMD_INFO(device, "context switch %d -> %d\n",
 			context->id, z180_dev->ringbuffer.prevctx);
-		kgsl_mmu_setstate(device, pagetable);
+		kgsl_mmu_setstate(&device->mmu, pagetable);
 		cnt = PACKETSIZE_STATESTREAM;
 		ofs = 0;
 	}
@@ -613,7 +613,7 @@
 
 	del_timer_sync(&device->idle_timer);
 
-	kgsl_mmu_stop(device);
+	kgsl_mmu_stop(&device->mmu);
 
 	/* Disable the clocks before the power rail. */
 	kgsl_pwrctrl_irq(device, KGSL_PWRFLAGS_OFF);