phy: qualcomm: phy-qcom-qmp: fix application of sizeof to pointer

drivers/phy/qualcomm/phy-qcom-qmp.c:847:37-43: ERROR: application of sizeof to pointer

 sizeof when applied to a pointer typed expression gives the size of
 the pointer

Generated by: scripts/coccinelle/misc/noderef.cocci

CC: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>