usb: musb: core: Handle Babble condition only in HOST mode
usb: musb: core: Handle Babble condition only in HOST mode

BABBLE and RESET share the same interrupt. The interrupt
is considered to be RESET if MUSB is in peripheral mode and
as a BABBLE if MUSB is in HOST mode.

Handle babble condition iff MUSB is in HOST mode.

Signed-off-by: George Cherian <8e18b99e46990fa7e3bd5a1867c7fd53949c00ec@ti.com>
Tested-by: Bin Liu <80e886ddfd1f0046841c2d07e66ecf430023b0ba@ti.com>
Signed-off-by: Felipe Balbi <94dddeeef08b001e003cce128ddc162a4e2c6cd2@ti.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs