net: msm_rmnet.h: Fix IOCTL numbering for newly introduced IOCTLs

Fix IOCTLs with invalid numbers. Addresses limitation in network
IOCTL code which prevents more than 16 user defined IOCTLs. All new
IOCTLs have been multiplexed into a single user defined ioctl. Required
to support RmNet Data features.

CRs-Fixed: 554883
Change-Id: Ic33bdf068f7e4014272d3b47ed7b07f5d4a6be2c
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>