refactor(xilinx): rename gic macros to make common

Rename macros PLAT_VERSAL_GICD_BASE, PLAT_VERSAL_GICR_BASE,
PLAT_VERSAL_NET_GICD_BASE and PLAT_VERSAL_NET_GICR_BASE to
PLAT_GICD_BASE_VALUE and PLAT_GICR_BASE_VALUE to make common
for both Versal and Versal NET platforms.

Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
Change-Id: Ibcebfb8e741e828ef272b32cbedfb4dcbf8629b6
7 files changed