MAINTAINERS: VMWARE VMXNET3 - Quote name with comma and period, use tabs

Names with periods or commas need to be quoted
Use tab not spaces

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Shreyas Bhatewara <sbhatewara@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>