Revert "adb: Lower EP_ALLOC retry count"

This reverts commit 05fe272a87c6be24d3e2808ecceed2be063b9c1d.

Commit "adb: Do not signal gaget stack unless descriptors are written"
fixed the main issue for configfs devices where device wasn't enabled
until after the ioctl was attempted. Thus it is safe to bring up the
retry count so that the ioctl doesn't fail due to small delays in
usb stack.

Test: use adb, switch configs on configfs devices
diff --git a/adb/daemon/usb.cpp b/adb/daemon/usb.cpp
index 7e46b02..d3b2f3d 100644
--- a/adb/daemon/usb.cpp
+++ b/adb/daemon/usb.cpp
@@ -64,7 +64,7 @@
 
 #define FUNCTIONFS_ENDPOINT_ALLOC       _IOR('g', 231, __u32)
 
-static constexpr size_t ENDPOINT_ALLOC_RETRIES = 2;
+static constexpr size_t ENDPOINT_ALLOC_RETRIES = 10;
 
 static int dummy_fd = -1;