msm: ipa4: fix to increment IPA clock vote count after enabling clock

In SM6125 target clock will be enabled through RPM driver, before enabling
clocks some times IPA clock vote was increased causing NOC error. Add
changes to increment IPA clock vote count after enabling clock.

Change-Id: I6f19da9e0d03eab744292588c5bc526b8a90482a
Signed-off-by: Ashok Vuyyuru <avuyyuru@codeaurora.org>