ARM: dts: msm: change APC0 virtual corner 11 floor voltage for msm8994

Currently, the floor voltage for APC0 virtual corner 11 is 965 mV. However,
CCI running at virtual corner 11 requires a minimum voltage of 990 mV.
Hence increase the floor voltage of virtual corner 11 to satisfy this
requirement.

CRs-Fixed: 773248
Change-Id: I1dd6cfae2838afb5c9f7e98907a646b03aada852
Signed-off-by: Ke Liu <keliu@codeaurora.org>