Staging: hv: Remove typedef STORVSC_REQUEST and PSTORVSC_REQUEST
typedef STORVSC_REQUEST and PSTORVSC_REQUEST are removed and their
usages are replace by the use of struct hv_storvsc_request and
struct hv_storvsc_request * respectively.
Here is the semantic patch generated to perform this transformation:
(http://coccinelle.lip6.fr/)