Revert "USB: dwc3: ep0.c: Disable U1 and U2 low power modes"
Revert "USB: dwc3: ep0.c: Disable U1 and U2 low power modes"

Commit 4f1de530f4d5989022d9594413132ea175c2845e disabled U1 and
U2 low power modes to avoid USB reenumeration issue seen during
data transfers in superspeed mode. This USB reenumeration is
resolved by commit Ibd5d8180202b2f877304be3da9d976fe54df3eed
"USB: dwc3: core: Set elastic buffer mode to zero". Hence revert
the commit to reenable U1 and U2 low power modes, otherwise USB3
complaince tests fail.

CRs-Fixed: 483202
Change-Id: I87443c9dc4cac443137f64998ced9fda1e583a44
Signed-off-by: Vijayavardhan Vennapusa <76e30dc6511df6537bc8f74ebde59f1a6034d162@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas