[keys/msm7630]: Remove the syncronization with mARM for PMIC GPIOs.

The PMIC GPIOs are now configured in the mARM boot code before the scorpion
is released from reset. Remove the code that waits for the AMSS initializtion
to complete.

Change-Id: I296aea27fa199898bb6efa08b590e3664a643679
diff --git a/dev/keys/gpio_keypad.c b/dev/keys/gpio_keypad.c
index 281cf64..b3e21c1 100644
--- a/dev/keys/gpio_keypad.c
+++ b/dev/keys/gpio_keypad.c
@@ -457,12 +457,8 @@
 
 void ssbi_keypad_init(struct qwerty_keypad_info  *qwerty_kp)
 {
-    int *modem_stat_check = (MSM_SHARED_BASE + 0x14);
     int len;
 
-    /* Wait for modem to be ready before keypad init */
-    while (readl(modem_stat_check) != 1);
-
     ssbi_gpio_init();
 
     len = sizeof(struct gpio_qwerty_kp);