memory hotplug: Define memory_block_size_bytes for x86_64 with CONFIG_X86_UV
memory hotplug: Define memory_block_size_bytes for x86_64 with CONFIG_X86_UV

Define a version of memory_block_size_bytes for x86_64 when CONFIG_X86_UV is
set.

Signed-off-by: Robin Holt <fad267d8332d5f62140cfd0120e54d2a812d419e@sgi.com>
Signed-off-by: Jack Steiner <9fc09c92f9d4898dd6e5af3e81679b627e939258@sgi.com>
Signed-off-by: Nathan Fontenot <4b7bfe500077bf77c5456931a34b0b70e36e0bc6@austin.ibm.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@suse.de>

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