platform: msm8974: Add tlmm config for drv strength

Add support to configure tlmm pins for sdcc & set higher
sdcc clock frequency for Dual Data Rate mode & HS200 mode
support.

Change-Id: I1a8876f562fe73df39f99b816eff7e350b7a20b8
diff --git a/platform/msm8974/include/platform/iomap.h b/platform/msm8974/include/platform/iomap.h
index a033ac8..b873889 100644
--- a/platform/msm8974/include/platform/iomap.h
+++ b/platform/msm8974/include/platform/iomap.h
@@ -166,4 +166,6 @@
 #define MDP_BASE                    (0xfd900000)
 #define REG_MDP(off)                (MDP_BASE + (off))
 
+/* DRV strength for sdcc */
+#define SDC1_HDRV_PULL_CTL           (TLMM_BASE_ADDR + 0x00002044)
 #endif