usb: host: ehci.h: move constant to right

This patch moves the constant 0x3ff to right and put spaces
in the right shift.

Caught by coccinelle:
scripts/coccinelle/misc/compare_const_fl.cocci

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>