Add downstream patch to fix compiling error

[nfraprado]

The following error occurs when compiling the downstream kernel:

  HOSTLD  scripts/dtc/dtc
/usr/bin/ld: scripts/dtc/dtc-parser.tab.o:(.bss+0x50): multiple definition of `yylloc'; scripts/dtc/dtc-lexer.lex.o:(.bss+0x0): first defined here
collect2: error: ld returned 1 exit status
make[2]: *** [scripts/Makefile.host:127: scripts/dtc/dtc] Error 1
make[1]: *** [scripts/Makefile.build:443: scripts/dtc] Error 2

While building the dtc, the host ld is used, so the CROSS_COMPILE path doesn't matter. Perhaps the ld version I'm using caused that to be an issue.

This patch fixed it for me and the downstream kernel is now running succesfully.

Tested on Arch Linux with kernel 5.9.3, GCC 10.2.0 and GNU ld (binutils)
2.35.1.

[z3ntu]

In the postmarketOS repos we have this patch for < v4.2 kernels which also adjusts the dtc-lexer.lex.c_shipped: https://gitlab.com/postmarketOS/pmaports/-/blob/master/device/.shared-patches/linux/gcc10-extern_YYLOC_global_declaration.patch