Revert "msm: kernel: ecm_ipa: WA for missing USB IPA RM support"

This reverts commit ad0ce1a0, which
disable the use of IPA resource manager.
That was needed due to missing support of IPA resource manager form
USB driver perspective.
The USB fix was introduced on 85812fe0

Change-Id: Icd4c2a7117a96f26a74c3a40c6fa6e65ff2a180f
Signed-off-by: Talel Atias <tatias@codeaurora.org>