msm: ipa3: Add missing IPA registers to the strings array

IPAHAL array of strings representing registers names
lacks wrongly few recently added registers.
Add these register strings to the array.

Change-Id: I003ac55cca4569df7fefecefecd593bf22cb5f7c
Signed-off-by: Ghanim Fodi <gfodi@codeaurora.org>