dma-debug: fix dma_debug_add_bus() definition for !CONFIG_DMA_API_DEBUG
dma-debug: fix dma_debug_add_bus() definition for !CONFIG_DMA_API_DEBUG

Impact: build fix

Fix:

 arch/x86/kvm/x86.o: In function `dma_debug_add_bus':
 (.text+0x0): multiple definition of `dma_debug_add_bus'

dma_debug_add_bus() should be a static inline function.

Cc: Joerg Roedel <ebd221a096cbc71dd9e1991db28795933c85f380@amd.com>
LKML-Reference: <3598f2e0b05e757a33db2af90839bae14c3b8e71@amd.com>
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@elte.hu>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas