NXP: Timer API added to enable ARM generic timer

NXP Timer Apis are based on:
- drivers/delay_timer

Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I2cbccf4c082a10affee1143390905b9cc99c3382
diff --git a/drivers/nxp/timer/timer.mk b/drivers/nxp/timer/timer.mk
new file mode 100644
index 0000000..b9e298f
--- /dev/null
+++ b/drivers/nxp/timer/timer.mk
@@ -0,0 +1,27 @@
+#
+# Copyright 2021 NXP
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+ifeq (${ADD_TIMER},)
+
+ADD_TIMER		:= 1
+
+TIMER_DRIVERS_PATH	:=  ${PLAT_DRIVERS_PATH}/timer
+
+PLAT_INCLUDES		+= -I$(TIMER_DRIVERS_PATH)
+TIMER_SOURCES	+= drivers/delay_timer/delay_timer.c	\
+			   $(PLAT_DRIVERS_PATH)/timer/nxp_timer.c
+
+ifeq (${BL_COMM_TIMER_NEEDED},yes)
+BL_COMMON_SOURCES	+= ${TIMER_SOURCES}
+else
+ifeq (${BL2_TIMER_NEEDED},yes)
+BL2_SOURCES		+= ${TIMER_SOURCES}
+endif
+ifeq (${BL31_TIMER_NEEDED},yes)
+BL31_SOURCES		+= ${TIMER_SOURCES}
+endif
+endif
+endif